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BOSTON MARATHON 2025

Stephanie Go

Bib: 17377•F

OR

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 25%
Division (F18-39)
#0 / 5469
Top 42%
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
7:42/mi
23:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:12:21
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:36:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:47/mi
2:00:37
↑ 66↓ 880.2%
30K· 18.64 mi
7:58/mi
2:25:21
↑ 181↓ 1480.2%
20M
7:57/mi
2:36:09
↑ 64↓ 500.2%
21M
8:24/mi
2:44:33
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:50:11
↑ 17↓ 861.7%
23M
7:50/mi
3:00:00
↑ 23↓ 630.6%
24M
7:36/mi
3:07:36
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:14:11
↓ 200.3%
25.2M
8:27/mi
3:17:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:24:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:45
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:42:54
Pace7:51 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2823:567:4223:56
7:42
-
10K
6.21 mi11:38:3147:597:4324:03
7:44
+0:02
15K
9.32 mi12:02:531:12:217:4624:22
7:51
+0:07
20K
12.43 mi12:27:041:36:327:4624:11
7:47
-0:04
Half
13.11 mi12:32:171:41:457:465:13
7:39
-0:08
25K
15.53 mi12:51:092:00:377:4618:52
7:47
+0:08
30K
18.64 mi13:15:532:25:217:4824:44
7:58
+0:11
20M
20.00 mi13:26:412:36:097:4810:48
7:57
-0:01
21M
21.00 mi13:35:052:44:337:508:24
8:24
+0:27
35K
21.75 mi13:40:432:50:117:505:38
7:32
-0:52
23M
23.00 mi13:50:323:00:007:509:49
7:50
+0:18
24M
24.00 mi13:58:083:07:367:497:36
7:36
-0:14
40K
24.85 mi14:04:433:14:117:496:35
7:42
+0:06
25.2M
25.20 mi14:07:383:17:067:492:55
8:27
+0:45
Finish
26.22 mi14:15:113:24:397:497:33
7:25
-1:02

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

7:25 /mi

Average Pace

7:49 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:20

94% of race

Time at Steady Pace

11:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:14:2823:567:4223:56
7:42
#14010
10K
6.21 mi11:38:3147:597:4324:03
7:44
#14087
15K
9.32 mi12:02:531:12:217:4624:22
7:51
#14310
20K
12.43 mi12:27:041:36:327:4624:11
7:47
#13975
Half
13.11 mi12:32:171:41:457:465:13
7:39
#13924
25K
15.53 mi12:51:092:00:377:4618:52
7:47
#13576
30K
18.64 mi13:15:532:25:217:4824:44
7:58
#13058
20M
20.00 mi13:26:412:36:097:4810:48
7:57
#12797
21M
21.00 mi13:35:052:44:337:508:24
8:24
#12594
35K
21.75 mi13:40:432:50:117:505:38
7:32
#12420
23M
23.00 mi13:50:323:00:007:509:49
7:50
#12173
24M
24.00 mi13:58:083:07:367:497:36
7:36
#11980
40K
24.85 mi14:04:433:14:117:496:35
7:42
#11791
25.2M
25.20 mi14:07:383:17:067:492:55
8:27
#11733
Finish
26.22 mi14:15:113:24:397:497:33
7:25
#11565
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi140103913391314746(Top 52%)4438(Top 36%)4438(Top 81%)
10K6.21 mi3.10 mi14087-773988-753988-7514263(Top 50%)4109(Top 34%)4109(Top 75%)
15K9.32 mi3.11 mi14310-2234140-1524140-15214746(Top 52%)4438(Top 36%)4438(Top 81%)
20K12.43 mi3.11 mi13975+3353987+1533987+15313145(Top 46%)3620(Top 30%)3620(Top 66%)
Half13.11 mi0.68 mi13924+513963+243963+2412996(Top 46%)3482(Top 28%)3482(Top 64%)
25K15.53 mi2.42 mi13576+3483805+1583805+15812199(Top 43%)3220(Top 26%)3220(Top 59%)
30K18.64 mi3.11 mi13058+5183585+2203585+22011120(Top 39%)2850(Top 23%)2850(Top 52%)
20M20.00 mi1.36 mi12797+2613466+1193466+11910121(Top 36%)2496(Top 20%)2496(Top 46%)
21M21.00 mi1.00 mi12594+2033388+783388+789880(Top 35%)2564(Top 21%)2564(Top 47%)
35K21.75 mi0.75 mi12420+1743321+673321+678906(Top 31%)2100(Top 17%)2100(Top 38%)
23M23.00 mi1.25 mi12173+2473226+953226+958908(Top 31%)2218(Top 18%)2218(Top 41%)
24M24.00 mi1.00 mi11980+1933161+653161+658451(Top 30%)2083(Top 17%)2083(Top 38%)
40K24.85 mi0.85 mi11791+1893098+633098+638138(Top 29%)2065(Top 17%)2065(Top 38%)
25.2M25.20 mi0.35 mi11733+583079+193079+198650(Top 30%)2363(Top 19%)2363(Top 43%)
Finish26.22 mi1.02 mi11565+1683038+413038+418596(Top 30%)2343(Top 19%)2343(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14746

Females

4438

F18-39

4438

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14263

Females

4109

F18-39

4109

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14746

Females

4438

F18-39

4438

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

13145

Females

3620

F18-39

3620

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12996

Females

3482

F18-39

3482

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12199

Females

3220

F18-39

3220

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11120

Females

2850

F18-39

2850

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10121

Females

2496

F18-39

2496

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9880

Females

2564

F18-39

2564

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8906

Females

2100

F18-39

2100

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8908

Females

2218

F18-39

2218

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8451

Females

2083

F18-39

2083

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8138

Females

2065

F18-39

2065

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8650

Females

2363

F18-39

2363

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8596

Females

2343

F18-39

2343

Passing Analysis

Category:
Athletes Passed
3329
Passed By
884
Net Change
+2445
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14010
5K → 10K222299-77#14010#14087
10K → 15K129352-223#14087#14310
15K → 20K39560+335#14310#13975
20K → Half7120+51#13975#13924
Half → 25K37426+348#13924#13576
25K → 30K56042+518#13576#13058
30K → 20M2698+261#13058#12797
20M → 21M22421+203#12797#12594
21M → 35K1817+174#12594#12420
35K → 23M2536+247#12420#12173
23M → 24M1952+193#12173#11980
24M → 40K1989+189#11980#11791
40K → 25.2M668+58#11791#11733
25.2M → Finish19224+168#11733#11565
TOTALS3329884+2445
📊

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