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BOSTON MARATHON 2025

Stephanie Wei

Bib: 15336•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
47:10
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:10:52
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:35:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:00:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:27:25
↑ 181↓ 1480.2%
20M
9:38/mi
2:40:30
↑ 64↓ 500.2%
21M
9:14/mi
2:49:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:43/mi
2:57:00
↑ 17↓ 861.7%
23M
8:52/mi
3:08:06
↑ 23↓ 630.6%
24M
8:50/mi
3:16:56
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:24:25
↓ 200.3%
25.2M
9:23/mi
3:27:39
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:36:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:44
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:55:21
Pace8:48 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2023:347:3523:34
7:35
-
10K
6.21 mi11:19:5647:107:3523:36
7:36
+0:01
15K
9.32 mi11:43:381:10:527:3623:42
7:38
+0:02
20K
12.43 mi12:08:121:35:267:4124:34
7:54
+0:16
Half
13.11 mi12:13:301:40:447:415:18
7:46
-0:08
25K
15.53 mi12:33:222:00:367:4619:52
8:12
+0:26
30K
18.64 mi13:00:112:27:257:5426:49
8:38
+0:26
20M
20.00 mi13:13:162:40:308:0113:05
9:38
+1:00
21M
21.00 mi13:22:302:49:448:059:14
9:14
-0:24
35K
21.75 mi13:29:462:57:008:087:16
9:43
+0:29
23M
23.00 mi13:40:523:08:068:1111:06
8:52
-0:51
24M
24.00 mi13:49:423:16:568:128:50
8:50
-0:02
40K
24.85 mi13:57:113:24:258:137:29
8:45
-0:05
25.2M
25.20 mi14:00:253:27:398:143:14
9:23
+0:38
Finish
26.22 mi14:08:513:36:058:158:26
8:17
-1:06

Checkpoints & Pacing

📈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

7:35 /mi

Average Pace

8:15 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:36

56% of race

Time at Steady Pace

1:02:40

29% of race

Time at Slower Pace

32:49

15% of race

Average Pace: 8:14 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:56:2023:347:3523:34
7:35
#13010
10K
6.21 mi11:19:5647:107:3523:36
7:36
#12965
15K
9.32 mi11:43:381:10:527:3623:42
7:38
#12903
20K
12.43 mi12:08:121:35:267:4124:34
7:54
#13186
Half
13.11 mi12:13:301:40:447:415:18
7:46
#13224
25K
15.53 mi12:33:222:00:367:4619:52
8:12
#13563
30K
18.64 mi13:00:112:27:257:5426:49
8:38
#13949
20M
20.00 mi13:13:162:40:308:0113:05
9:38
#14541
21M
21.00 mi13:22:302:49:448:059:14
9:14
#14531
35K
21.75 mi13:29:462:57:008:087:16
9:43
#14861
23M
23.00 mi13:40:523:08:068:1111:06
8:52
#14861
24M
24.00 mi13:49:423:16:568:128:50
8:50
#14925
40K
24.85 mi13:57:113:24:258:137:29
8:45
#14913
25.2M
25.20 mi14:00:253:27:398:143:14
9:23
#14882
Finish
26.22 mi14:08:513:36:058:158:26
8:17
#14859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130103325332512892(Top 45%)3389(Top 28%)3389(Top 62%)
10K6.21 mi3.10 mi12965+453318+73318+713009(Top 46%)3376(Top 28%)3376(Top 62%)
15K9.32 mi3.11 mi12903+623332-143332-1412892(Top 45%)3389(Top 28%)3389(Top 62%)
20K12.43 mi3.11 mi13186-2833547-2153547-21514168(Top 50%)4185(Top 34%)4185(Top 77%)
Half13.11 mi0.68 mi13224-383573-263573-2614093(Top 50%)4126(Top 34%)4126(Top 75%)
25K15.53 mi2.42 mi13563-3393803-2303803-23015293(Top 54%)4895(Top 40%)4895(Top 90%)
30K18.64 mi3.11 mi13949-3864075-2724075-27215578(Top 55%)5217(Top 43%)5217(Top 95%)
20M20.00 mi1.36 mi14541-5924440-3654440-36519703(Top 69%)7631(Top 62%)7631(Top 140%)
21M21.00 mi1.00 mi14531+104458-184458-1814822(Top 52%)5062(Top 41%)5062(Top 93%)
35K21.75 mi0.75 mi14861-3304654-1964654-19621052(Top 74%)8527(Top 70%)8527(Top 156%)
23M23.00 mi1.25 mi148614685-314685-3115492(Top 55%)5594(Top 46%)5594(Top 102%)
24M24.00 mi1.00 mi14925-644759-744759-7416505(Top 58%)6203(Top 51%)6203(Top 113%)
40K24.85 mi0.85 mi14913+124779-204779-2014939(Top 53%)5484(Top 45%)5484(Top 100%)
25.2M25.20 mi0.35 mi14882+314773+64773+613931(Top 49%)4974(Top 41%)4974(Top 91%)
Finish26.22 mi1.02 mi14859+234793-204793-2014786(Top 52%)5359(Top 44%)5359(Top 98%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12892

Females

3389

F18-39

3389

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13009

Females

3376

F18-39

3376

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12892

Females

3389

F18-39

3389

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14168

Females

4185

F18-39

4185

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14093

Females

4126

F18-39

4126

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15293

Females

4895

F18-39

4895

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15578

Females

5217

F18-39

5217

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

19703

Females

7631

F18-39

7631

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

14822

Females

5062

F18-39

5062

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21052

Females

8527

F18-39

8527

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15492

Females

5594

F18-39

5594

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16505

Females

6203

F18-39

6203

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14939

Females

5484

F18-39

5484

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13931

Females

4974

F18-39

4974

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14786

Females

5359

F18-39

5359

Passing Analysis

Category:
Athletes Passed
1470
Passed By
3319
Net Change
-1849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13010
5K → 10K299254+45#13010#12965
10K → 15K245183+62#12965#12903
15K → 20K117400-283#12903#13186
20K → Half1957-38#13186#13224
Half → 25K89428-339#13224#13563
25K → 30K146532-386#13563#13949
30K → 20M31623-592#13949#14541
20M → 21M123113+10#14541#14531
21M → 35K17347-330#14531#14861
35K → 23M1201200#14861#14861
23M → 24M54118-64#14861#14925
24M → 40K7260+12#14925#14913
40K → 25.2M5423+31#14913#14882
25.2M → Finish8461+23#14882#14859
TOTALS14703319-1849
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing