All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Cynthia Guerreiro

Bib: 21332•F

FL

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 50%
Gender (Female)
#0 / 12578
Top 37%
Masters (Masters Women)
#0 / 6862
Top 21%
Age Group (F45-49)
#0 / 1786
Top 24%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
23:42
3.11 mi
Rank: #13911
Start → 5K
23:42 | 7:38/mi
10K
47:02
6.21 mi
Rank: #13465 (+446)
5K → 10K
23:20 | 7:31/mi
15K
1:11:04
9.32 mi
Rank: #13879 (-414)
10K → 15K
24:02 | 7:45/mi
20K
1:36:35
12.43 mi
Rank: #14924 (-1045)
15K → 20K
25:31 | 8:13/mi
HALF
1:41:52
13.11 mi
Rank: #14937 (-13)
20K → HALF
5:17 | 7:46/mi
25K
2:02:04
15.53 mi
Rank: #15416 (-479)
HALF → 25K
20:12 | 8:20/mi
30K
2:27:38
18.64 mi
Rank: #15361 (+55)
25K → 30K
25:34 | 8:14/mi
20M
2:38:43
20.00 mi
Rank: #15222 (+139)
30K → 20M
11:05 | 8:10/mi
21M
2:47:29
21.00 mi
Rank: #15160 (+62)
20M → 21M
8:46 | 8:46/mi
35K
2:53:07
21.75 mi
Rank: #14982 (+178)
21M → 35K
5:38 | 7:32/mi
23M
3:03:04
23.00 mi
Rank: #14799 (+183)
35K → 23M
9:57 | 7:58/mi
24M
3:10:50
24.00 mi
Rank: #14667 (+132)
23M → 24M
7:46 | 7:46/mi
40K
3:17:36
24.85 mi
Rank: #14557 (+110)
24M → 40K
6:46 | 7:55/mi
25.2M
3:20:32
25.20 mi
Rank: #14502 (+55)
40K → 25.2M
2:56 | 8:31/mi
FINISH
3:28:23
26.22 mi
Rank: #14453 (+49)
25.2M → FINISH
7:51 | 7:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:52
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:46:31
Pace8:08 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0223:427:3823:42
7:38
-
10K
6.21 mi11:48:2247:027:3523:20
7:31
-0:07
15K
9.32 mi12:12:241:11:047:3824:02
7:45
+0:14
20K
12.43 mi12:37:551:36:357:4725:31
8:13
+0:28
HALF
13.11 mi12:43:121:41:527:475:17
7:46
-0:27
25K
15.53 mi13:03:242:02:047:5220:12
8:20
+0:34
30K
18.64 mi13:28:582:27:387:5625:34
8:14
-0:06
20M
20.00 mi13:40:032:38:437:5711:05
8:10
-0:04
21M
21.00 mi13:48:492:47:297:598:46
8:46
+0:36
35K
21.75 mi13:54:272:53:077:585:38
7:32
-1:14
23M
23.00 mi14:04:243:03:047:589:57
7:58
+0:26
24M
24.00 mi14:12:103:10:507:587:46
7:46
-0:12
40K
24.85 mi14:18:563:17:367:586:46
7:55
+0:09
25.2M
25.20 mi14:21:523:20:327:582:56
8:31
+0:36
FINISH
26.22 mi14:29:433:28:237:587:51
7:43
-0:48

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:31 /mi

Average Pace

7:57 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:56:29

85% of race

Time at Steady Pace

31:54

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:25:0223:427:3823:42
7:38
#13911
10K
6.21 mi11:48:2247:027:3523:20
7:31
#13465
15K
9.32 mi12:12:241:11:047:3824:02
7:45
#13879
20K
12.43 mi12:37:551:36:357:4725:31
8:13
#14924
HALF
13.11 mi12:43:121:41:527:475:17
7:46
#14937
25K
15.53 mi13:03:242:02:047:5220:12
8:20
#15416
30K
18.64 mi13:28:582:27:387:5625:34
8:14
#15361
20M
20.00 mi13:40:032:38:437:5711:05
8:10
#15222
21M
21.00 mi13:48:492:47:297:598:46
8:46
#15160
35K
21.75 mi13:54:272:53:077:585:38
7:32
#14982
23M
23.00 mi14:04:243:03:047:589:57
7:58
#14799
24M
24.00 mi14:12:103:10:507:587:46
7:46
#14667
40K
24.85 mi14:18:563:17:367:586:46
7:55
#14557
25.2M
25.20 mi14:21:523:20:327:582:56
8:31
#14502
FINISH
26.22 mi14:29:433:28:237:587:51
7:43
#14453
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi139114026402614828(Top 51%)4635(Top 37%)4635(Top 260%)
10K6.21 mi3.10 mi13465+4463789+2373789+23713058(Top 45%)3581(Top 28%)3581(Top 201%)
15K9.32 mi3.11 mi13879-4144044-2554044-25514828(Top 51%)4635(Top 37%)4635(Top 260%)
20K12.43 mi3.11 mi14924-10454696-6524696-65217564(Top 61%)6252(Top 50%)6252(Top 350%)
HALF13.11 mi0.68 mi14937-134700-44700-415215(Top 52%)4851(Top 39%)4851(Top 272%)
25K15.53 mi2.42 mi15416-4795013-3135013-31317588(Top 61%)6324(Top 50%)6324(Top 354%)
30K18.64 mi3.11 mi15361+555023-105023-1015126(Top 52%)5038(Top 40%)5038(Top 282%)
20M20.00 mi1.36 mi15222+1394955+684955+6813985(Top 48%)4484(Top 36%)4484(Top 251%)
21M21.00 mi1.00 mi15160+624955495514790(Top 51%)5022(Top 40%)5022(Top 281%)
35K21.75 mi0.75 mi14982+1784860+954860+9511180(Top 39%)3114(Top 25%)3114(Top 174%)
23M23.00 mi1.25 mi14799+1834777+834777+8312156(Top 42%)3691(Top 29%)3691(Top 207%)
24M24.00 mi1.00 mi14667+1324728+494728+4912090(Top 42%)3764(Top 30%)3764(Top 211%)
40K24.85 mi0.85 mi14557+1104676+524676+5211935(Top 41%)3756(Top 30%)3756(Top 210%)
25.2M25.20 mi0.35 mi14502+554653+234653+2311769(Top 41%)3756(Top 30%)3756(Top 210%)
FINISH26.22 mi1.02 mi14453+494645+84645+813052(Top 45%)4416(Top 35%)4416(Top 247%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21
+97ft-345ft

Overall

14828

Females

4635

F45-49

4635

5K→10K

3.1 - 6.2 mi

Top 45%
×5
+79ft-138ft

Overall

13058

Females

3581

F45-49

3581

10K→15K

6.2 - 9.3 mi

Top 51%
×3
+67ft-78ft

Overall

14828

Females

4635

F45-49

4635

15K→20K

9.3 - 12.4 mi

Top 61%
×5
+106ft-86ft

Overall

17564

Females

6252

F45-49

6252

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

15215

Females

4851

F45-49

4851

HALF→25K

13.1 - 15.5 mi

Top 61%
×4
+66ft-88ft

Overall

17588

Females

6324

F45-49

6324

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15126

Females

5038

F45-49

5038

30K→20M

18.6 - 20.0 mi

Top 48%
×5
+64ft-50ft

Overall

13985

Females

4484

F45-49

4484

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14790

Females

5022

F45-49

5022

21M→35K

21.0 - 21.8 mi

Top 39%
×7
+17ft-86ft

Overall

11180

Females

3114

F45-49

3114

35K→23M

21.8 - 23.0 mi

Top 42%
×5
+23ft-63ft

Overall

12156

Females

3691

F45-49

3691

23M→24M

23.0 - 24.0 mi

Top 42%
×6
+12ft-82ft

Overall

12090

Females

3764

F45-49

3764

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11935

Females

3756

F45-49

3756

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1
+13ft-16ft

Overall

11769

Females

3756

F45-49

3756

25.2M→FINISH

25.2 - 26.2 mi

Top 45%
×2
+22ft-21ft

Overall

13052

Females

4416

F45-49

4416

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2119
Passed By
2661
Net Change
-542
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13911
5K → 10K586140+446#13911#13465
10K → 15K86500-414#13465#13879
15K → 20K251070-1045#13879#14924
20K → HALF3043-13#14924#14937
HALF → 25K48527-479#14937#15416
25K → 30K221166+55#15416#15361
30K → 20M17435+139#15361#15222
20M → 21M13270+62#15222#15160
21M → 35K1813+178#15160#14982
35K → 23M20724+183#14982#14799
23M → 24M14917+132#14799#14667
24M → 40K12414+110#14667#14557
40K → 25.2M649+55#14557#14502
25.2M → FINISH9243+49#14502#14453
TOTALS21192661-542
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing