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BOSTON MARATHON 2026

Lydia Guo

Bib: 17320•F

NY

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 30%
Gender (Female)
#0 / 12578
Top 13%
Age Group (F18-39)
#0 / 5716
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
22:26
3.11 mi
Rank: #10372
Start → 5K
22:26 | 7:14/mi
10K
44:35
6.21 mi
Rank: #9981 (+391)
5K → 10K
22:09 | 7:08/mi
15K
1:06:59
9.32 mi
Rank: #10022 (-41)
10K → 15K
22:24 | 7:13/mi
20K
1:29:35
12.43 mi
Rank: #9964 (+58)
15K → 20K
22:36 | 7:17/mi
HALF
1:34:24
13.11 mi
Rank: #9914 (+50)
20K → HALF
4:49 | 7:04/mi
25K
1:52:11
15.53 mi
Rank: #9913 (+1)
HALF → 25K
17:47 | 7:20/mi
30K
2:14:52
18.64 mi
Rank: #9540 (+373)
25K → 30K
22:41 | 7:19/mi
20M
2:24:56
20.00 mi
Rank: #9434 (+106)
30K → 20M
10:04 | 7:25/mi
21M
2:32:47
21.00 mi
Rank: #9349 (+85)
20M → 21M
7:51 | 7:51/mi
35K
2:38:04
21.75 mi
Rank: #9239 (+110)
21M → 35K
5:17 | 7:04/mi
23M
2:47:13
23.00 mi
Rank: #9085 (+154)
35K → 23M
9:09 | 7:19/mi
24M
2:54:20
24.00 mi
Rank: #8974 (+111)
23M → 24M
7:07 | 7:07/mi
40K
3:00:27
24.85 mi
Rank: #8830 (+144)
24M → 40K
6:07 | 7:10/mi
25.2M
3:03:04
25.20 mi
Rank: #8752 (+78)
40K → 25.2M
2:37 | 7:36/mi
FINISH
3:09:52
26.22 mi
Rank: #8582 (+170)
25.2M → FINISH
6:48 | 6:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:24
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:35:28
Pace7:17 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:03:5822:267:1422:26
7:14
-
10K
6.21 mi11:26:0744:357:1122:09
7:08
-0:06
15K
9.32 mi11:48:311:06:597:1222:24
7:13
+0:05
20K
12.43 mi12:11:071:29:357:1322:36
7:17
+0:04
HALF
13.11 mi12:15:561:34:247:134:49
7:04
-0:13
25K
15.53 mi12:33:431:52:117:1417:47
7:20
+0:16
30K
18.64 mi12:56:242:14:527:1522:41
7:19
-0:01
20M
20.00 mi13:06:282:24:567:1510:04
7:25
+0:06
21M
21.00 mi13:14:192:32:477:177:51
7:51
+0:26
35K
21.75 mi13:19:362:38:047:175:17
7:04
-0:47
23M
23.00 mi13:28:452:47:137:179:09
7:19
+0:15
24M
24.00 mi13:35:522:54:207:167:07
7:07
-0:12
40K
24.85 mi13:41:593:00:277:166:07
7:10
+0:03
25.2M
25.20 mi13:44:363:03:047:162:37
7:36
+0:26
FINISH
26.22 mi13:51:243:09:527:156:48
6:41
-0:55

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

6:41 /mi

Average Pace

7:15 /mi

Slowest Pace

7:51 /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

2:49:20

89% of race

Time at Steady Pace

20:32

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi11:03:5822:267:1422:26
7:14
#10372
10K
6.21 mi11:26:0744:357:1122:09
7:08
#9981
15K
9.32 mi11:48:311:06:597:1222:24
7:13
#10022
20K
12.43 mi12:11:071:29:357:1322:36
7:17
#9964
HALF
13.11 mi12:15:561:34:247:134:49
7:04
#9914
25K
15.53 mi12:33:431:52:117:1417:47
7:20
#9913
30K
18.64 mi12:56:242:14:527:1522:41
7:19
#9540
20M
20.00 mi13:06:282:24:567:1510:04
7:25
#9434
21M
21.00 mi13:14:192:32:477:177:51
7:51
#9349
35K
21.75 mi13:19:362:38:047:175:17
7:04
#9239
23M
23.00 mi13:28:452:47:137:179:09
7:19
#9085
24M
24.00 mi13:35:522:54:207:167:07
7:07
#8974
40K
24.85 mi13:41:593:00:277:166:07
7:10
#8830
25.2M
25.20 mi13:44:363:03:047:162:37
7:36
#8752
FINISH
26.22 mi13:51:243:09:527:156:48
6:41
#8582
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi103722066206610225(Top 35%)2065(Top 16%)2065(Top 36%)
10K6.21 mi3.10 mi9981+3911881+1851881+1859627(Top 33%)1720(Top 14%)1720(Top 30%)
15K9.32 mi3.11 mi10022-411919-381919-3810225(Top 35%)2065(Top 16%)2065(Top 36%)
20K12.43 mi3.11 mi9964+581927-81927-89958(Top 34%)2023(Top 16%)2023(Top 35%)
HALF13.11 mi0.68 mi9914+501906+211906+219229(Top 32%)1610(Top 13%)1610(Top 28%)
25K15.53 mi2.42 mi9913+11927-211927-219999(Top 34%)2122(Top 17%)2122(Top 37%)
30K18.64 mi3.11 mi9540+3731809+1181809+1188113(Top 28%)1421(Top 11%)1421(Top 25%)
20M20.00 mi1.36 mi9434+1061788+211788+218472(Top 29%)1686(Top 13%)1686(Top 29%)
21M21.00 mi1.00 mi9349+851769+191769+198882(Top 31%)1974(Top 16%)1974(Top 35%)
35K21.75 mi0.75 mi9239+1101734+351734+357617(Top 26%)1397(Top 11%)1397(Top 24%)
23M23.00 mi1.25 mi9085+1541708+261708+267570(Top 26%)1450(Top 12%)1450(Top 25%)
24M24.00 mi1.00 mi8974+1111690+181690+187307(Top 25%)1425(Top 11%)1425(Top 25%)
40K24.85 mi0.85 mi8830+1441656+341656+346498(Top 22%)1173(Top 9%)1173(Top 21%)
25.2M25.20 mi0.35 mi8752+781633+231633+235850(Top 20%)1023(Top 8%)1023(Top 18%)
FINISH26.22 mi1.02 mi8582+1701590+431590+435309(Top 18%)894(Top 7%)894(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21
+97ft-345ft

Overall

10225

Females

2065

F18-39

2065

5K→10K

3.1 - 6.2 mi

Top 33%
×5
+79ft-138ft

Overall

9627

Females

1720

F18-39

1720

10K→15K

6.2 - 9.3 mi

Top 35%
×3
+67ft-78ft

Overall

10225

Females

2065

F18-39

2065

15K→20K

9.3 - 12.4 mi

Top 34%
×5
+106ft-86ft

Overall

9958

Females

2023

F18-39

2023

20K→HALF

12.4 - 13.1 mi

Top 32%
×2
+19ft-37ft

Overall

9229

Females

1610

F18-39

1610

HALF→25K

13.1 - 15.5 mi

Top 34%
×4
+66ft-88ft

Overall

9999

Females

2122

F18-39

2122

25K→30K

15.5 - 18.6 mi

Top 28%
×9
+181ft-148ft

Overall

8113

Females

1421

F18-39

1421

30K→20M

18.6 - 20.0 mi

Top 29%
×5
+64ft-50ft

Overall

8472

Females

1686

F18-39

1686

20M→21M

20.0 - 21.0 mi

Top 31%
×8
+106ft-24ft

Overall

8882

Females

1974

F18-39

1974

21M→35K

21.0 - 21.8 mi

Top 26%
×7
+17ft-86ft

Overall

7617

Females

1397

F18-39

1397

35K→23M

21.8 - 23.0 mi

Top 26%
×5
+23ft-63ft

Overall

7570

Females

1450

F18-39

1450

23M→24M

23.0 - 24.0 mi

Top 25%
×6
+12ft-82ft

Overall

7307

Females

1425

F18-39

1425

24M→40K

24.0 - 24.9 mi

Top 22%
×1
+6ft-20ft

Overall

6498

Females

1173

F18-39

1173

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1
+13ft-16ft

Overall

5850

Females

1023

F18-39

1023

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5309

Females

894

F18-39

894

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2483*
Passed By
692
Net Change
+1790
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10372
5K → 10K485*94+391#10372#9981
10K → 15K157197-41#9981#10022
15K → 20K188*130+58#10022#9964
20K → HALF588+50#9964#9914
HALF → 25K111110+1#9914#9913
25K → 30K39623+373#9913#9540
30K → 20M14438+106#9540#9434
20M → 21M12540+85#9434#9349
21M → 35K1166+110#9349#9239
35K → 23M17319+154#9239#9085
23M → 24M12615+111#9085#8974
24M → 40K1484+144#8974#8830
40K → 25.2M813+78#8830#8752
25.2M → FINISH1755+170#8752#8582
TOTALS2483*692+1790

* Includes athletes who did not complete a segment (DNF/DNQ).

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📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing