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BOSTON MARATHON 2026

Sydney Kaufman

Bib: 17109•F

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 45%
Gender (Female)
#0 / 12578
Top 30%
Age Group (F18-39)
#0 / 5716
Top 49%
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
23:57
3.11 mi
Rank: #14647
Start → 5K
23:57 | 7:43/mi
10K
47:34
6.21 mi
Rank: #14220 (+427)
5K → 10K
23:37 | 7:37/mi
15K
1:11:08
9.32 mi
Rank: #13933 (+287)
10K → 15K
23:34 | 7:36/mi
20K
1:35:16
12.43 mi
Rank: #14006 (-73)
15K → 20K
24:08 | 7:47/mi
HALF
1:40:31
13.11 mi
Rank: #14031 (-25)
20K → HALF
5:15 | 7:43/mi
25K
1:59:32
15.53 mi
Rank: #14021 (+10)
HALF → 25K
19:01 | 7:51/mi
30K
2:24:45
18.64 mi
Rank: #14061 (-40)
25K → 30K
25:13 | 8:07/mi
20M
2:35:45
20.00 mi
Rank: #13989 (+72)
30K → 20M
11:00 | 8:06/mi
21M
2:44:03
21.00 mi
Rank: #13836 (+153)
20M → 21M
8:18 | 8:18/mi
35K
2:49:39
21.75 mi
Rank: #13704 (+132)
21M → 35K
5:36 | 7:30/mi
23M
2:59:23
23.00 mi
Rank: #13507 (+197)
35K → 23M
9:44 | 7:47/mi
24M
3:06:54
24.00 mi
Rank: #13332 (+175)
23M → 24M
7:31 | 7:31/mi
40K
3:13:24
24.85 mi
Rank: #13177 (+155)
24M → 40K
6:30 | 7:37/mi
25.2M
3:16:12
25.20 mi
Rank: #13112 (+65)
40K → 25.2M
2:48 | 8:08/mi
FINISH
3:23:39
26.22 mi
Rank: #12967 (+145)
25.2M → FINISH
7:27 | 7:19/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:31
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:43:08
Pace7:53 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:2923:577:4323:57
7:43
-
10K
6.21 mi11:29:0647:347:4023:37
7:37
-0:06
15K
9.32 mi11:52:401:11:087:3823:34
7:36
-0:01
20K
12.43 mi12:16:481:35:167:4024:08
7:47
+0:11
HALF
13.11 mi12:22:031:40:317:415:15
7:43
-0:04
25K
15.53 mi12:41:041:59:327:4219:01
7:51
+0:08
30K
18.64 mi13:06:172:24:457:4625:13
8:07
+0:16
20M
20.00 mi13:17:172:35:457:4811:00
8:06
-0:01
21M
21.00 mi13:25:352:44:037:498:18
8:18
+0:12
35K
21.75 mi13:31:112:49:397:495:36
7:30
-0:48
23M
23.00 mi13:40:552:59:237:489:44
7:47
+0:17
24M
24.00 mi13:48:263:06:547:487:31
7:31
-0:16
40K
24.85 mi13:54:563:13:247:476:30
7:37
+0:06
25.2M
25.20 mi13:57:443:16:127:482:48
8:08
+0:31
FINISH
26.22 mi14:05:113:23:397:477:27
7:19
-0:49

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

7:19 /mi

Average Pace

7:46 /mi

Slowest Pace

8:18 /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

2:36:20

77% of race

Time at Steady Pace

47:19

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:05:2923:577:4323:57
7:43
#14647
10K
6.21 mi11:29:0647:347:4023:37
7:37
#14220
15K
9.32 mi11:52:401:11:087:3823:34
7:36
#13933
20K
12.43 mi12:16:481:35:167:4024:08
7:47
#14006
HALF
13.11 mi12:22:031:40:317:415:15
7:43
#14031
25K
15.53 mi12:41:041:59:327:4219:01
7:51
#14021
30K
18.64 mi13:06:172:24:457:4625:13
8:07
#14061
20M
20.00 mi13:17:172:35:457:4811:00
8:06
#13989
21M
21.00 mi13:25:352:44:037:498:18
8:18
#13836
35K
21.75 mi13:31:112:49:397:495:36
7:30
#13704
23M
23.00 mi13:40:552:59:237:489:44
7:47
#13507
24M
24.00 mi13:48:263:06:547:487:31
7:31
#13332
40K
24.85 mi13:54:563:13:247:476:30
7:37
#13177
25.2M
25.20 mi13:57:443:16:127:482:48
8:08
#13112
FINISH
26.22 mi14:05:113:23:397:477:27
7:19
#12967
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 mi146474453445313551(Top 47%)3890(Top 31%)3890(Top 68%)
10K6.21 mi3.10 mi14220+4274233+2204233+22013896(Top 48%)4052(Top 32%)4052(Top 71%)
15K9.32 mi3.11 mi13933+2874077+1564077+15613551(Top 47%)3890(Top 31%)3890(Top 68%)
20K12.43 mi3.11 mi14006-734145-684145-6814277(Top 49%)4367(Top 35%)4367(Top 76%)
HALF13.11 mi0.68 mi14031-254167-224167-2214762(Top 51%)4564(Top 36%)4564(Top 80%)
25K15.53 mi2.42 mi14021+104172-54172-514169(Top 49%)4391(Top 35%)4391(Top 77%)
30K18.64 mi3.11 mi14061-404230-584230-5814318(Top 49%)4581(Top 36%)4581(Top 80%)
20M20.00 mi1.36 mi13989+724226+44226+413534(Top 47%)4246(Top 34%)4246(Top 74%)
21M21.00 mi1.00 mi13836+1534158+684158+6811881(Top 41%)3462(Top 28%)3462(Top 61%)
35K21.75 mi0.75 mi13704+1324101+574101+5710814(Top 37%)2926(Top 23%)2926(Top 51%)
23M23.00 mi1.25 mi13507+1974022+794022+7910904(Top 38%)3065(Top 24%)3065(Top 54%)
24M24.00 mi1.00 mi13332+1753947+753947+7510260(Top 35%)2807(Top 22%)2807(Top 49%)
40K24.85 mi0.85 mi13177+1553873+743873+749661(Top 33%)2605(Top 21%)2605(Top 46%)
25.2M25.20 mi0.35 mi13112+653845+283845+289213(Top 32%)2476(Top 20%)2476(Top 43%)
FINISH26.22 mi1.02 mi12967+1453798+473798+4710007(Top 34%)2856(Top 23%)2856(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21
+97ft-345ft

Overall

13551

Females

3890

F18-39

3890

5K→10K

3.1 - 6.2 mi

Top 48%
×5
+79ft-138ft

Overall

13896

Females

4052

F18-39

4052

10K→15K

6.2 - 9.3 mi

Top 47%
×3
+67ft-78ft

Overall

13551

Females

3890

F18-39

3890

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14277

Females

4367

F18-39

4367

20K→HALF

12.4 - 13.1 mi

Top 51%
×2
+19ft-37ft

Overall

14762

Females

4564

F18-39

4564

HALF→25K

13.1 - 15.5 mi

Top 49%
×4
+66ft-88ft

Overall

14169

Females

4391

F18-39

4391

25K→30K

15.5 - 18.6 mi

Top 49%
×9
+181ft-148ft

Overall

14318

Females

4581

F18-39

4581

30K→20M

18.6 - 20.0 mi

Top 47%
×5
+64ft-50ft

Overall

13534

Females

4246

F18-39

4246

20M→21M

20.0 - 21.0 mi

Top 41%
×8
+106ft-24ft

Overall

11881

Females

3462

F18-39

3462

21M→35K

21.0 - 21.8 mi

Top 37%
×7
+17ft-86ft

Overall

10814

Females

2926

F18-39

2926

35K→23M

21.8 - 23.0 mi

Top 38%
×5
+23ft-63ft

Overall

10904

Females

3065

F18-39

3065

23M→24M

23.0 - 24.0 mi

Top 35%
×6
+12ft-82ft

Overall

10260

Females

2807

F18-39

2807

24M→40K

24.0 - 24.9 mi

Top 33%
×1
+6ft-20ft

Overall

9661

Females

2605

F18-39

2605

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1
+13ft-16ft

Overall

9213

Females

2476

F18-39

2476

25.2M→FINISH

25.2 - 26.2 mi

Top 34%
×2
+22ft-21ft

Overall

10007

Females

2856

F18-39

2856

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2644
Passed By
964
Net Change
+1680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14647
5K → 10K568141+427#14647#14220
10K → 15K36275+287#14220#13933
15K → 20K137210-73#13933#14006
20K → HALF3055-25#14006#14031
HALF → 25K139129+10#14031#14021
25K → 30K174214-40#14021#14061
30K → 20M13361+72#14061#13989
20M → 21M17724+153#13989#13836
21M → 35K1386+132#13836#13704
35K → 23M21013+197#13704#13507
23M → 24M1849+175#13507#13332
24M → 40K1649+155#13332#13177
40K → 25.2M672+65#13177#13112
25.2M → FINISH16116+145#13112#12967
TOTALS2644964+1680
📊

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