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BOSTON MARATHON 2025

Sydni Stevenson

Bib: 15648•F

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
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
7:27/mi
23:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
46:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:00
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:34:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:39:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
1:58:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:25:40
↑ 181↓ 1480.2%
20M
9:42/mi
2:38:51
↑ 64↓ 500.2%
21M
10:45/mi
2:49:36
↑ 106↓ 241.6%
35K· 21.75 mi
10:35/mi
2:57:31
↑ 17↓ 861.7%
23M
10:04/mi
3:10:07
↑ 23↓ 630.6%
24M
9:53/mi
3:20:00
↓ 821.3%
40K· 24.85 mi
10:05/mi
3:28:37
↓ 200.3%
25.2M
10:47/mi
3:32:20
↑ 13↓ 160.2%
Finish· 26.22 mi
8:56/mi
3:41:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:28
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time2:01:58
Pace9:18 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2823:097:2723:09
7:27
-
10K
6.21 mi11:17:5046:317:2923:22
7:31
+0:04
15K
9.32 mi11:41:191:10:007:3123:29
7:34
+0:03
20K
12.43 mi12:05:301:34:117:3524:11
7:47
+0:13
Half
13.11 mi12:10:471:39:287:355:17
7:45
-0:02
25K
15.53 mi12:30:011:58:427:3819:14
7:56
+0:11
30K
18.64 mi12:56:592:25:407:4926:58
8:41
+0:45
20M
20.00 mi13:10:102:38:517:5713:11
9:42
+1:01
21M
21.00 mi13:20:552:49:368:0510:45
10:45
+1:03
35K
21.75 mi13:28:502:57:318:107:55
10:35
-0:10
23M
23.00 mi13:41:263:10:078:1612:36
10:04
-0:31
24M
24.00 mi13:51:193:20:008:209:53
9:53
-0:11
40K
24.85 mi13:59:563:28:378:248:37
10:05
+0:12
25.2M
25.20 mi14:03:393:32:208:263:43
10:47
+0:42
Finish
26.22 mi14:12:453:41:268:279:06
8:56
-1:51

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

7:27 /mi

Average Pace

8:27 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:42

54% of race

Time at Steady Pace

36:04

16% of race

Time at Slower Pace

1:06:40

30% of race

Average Pace: 8:27 /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 mi10:54:2823:097:2723:09
7:27
#11824
10K
6.21 mi11:17:5046:317:2923:22
7:31
#12020
15K
9.32 mi11:41:191:10:007:3123:29
7:34
#12089
20K
12.43 mi12:05:301:34:117:3524:11
7:47
#12310
Half
13.11 mi12:10:471:39:287:355:17
7:45
#12391
25K
15.53 mi12:30:011:58:427:3819:14
7:56
#12534
30K
18.64 mi12:56:592:25:407:4926:58
8:41
#13218
20M
20.00 mi13:10:102:38:517:5713:11
9:42
#13853
21M
21.00 mi13:20:552:49:368:0510:45
10:45
#14473
35K
21.75 mi13:28:502:57:318:107:55
10:35
#15040
23M
23.00 mi13:41:263:10:078:1612:36
10:04
#15490
24M
24.00 mi13:51:193:20:008:209:53
9:53
#15784
40K
24.85 mi13:59:563:28:378:248:37
10:05
#16038
25.2M
25.20 mi14:03:393:32:208:263:43
10:47
#16119
Finish
26.22 mi14:12:453:41:268:279:06
8:56
#16236
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118242705270512268(Top 43%)3055(Top 25%)3055(Top 56%)
10K6.21 mi3.10 mi12020-1962824-1192824-11912318(Top 43%)2990(Top 24%)2990(Top 55%)
15K9.32 mi3.11 mi12089-692891-672891-6712268(Top 43%)3055(Top 25%)3055(Top 56%)
20K12.43 mi3.11 mi12310-2213037-1463037-14613165(Top 46%)3640(Top 30%)3640(Top 67%)
Half13.11 mi0.68 mi12391-813090-533090-5313866(Top 49%)4005(Top 33%)4005(Top 73%)
25K15.53 mi2.42 mi12534-1433212-1223212-12213392(Top 47%)3881(Top 32%)3881(Top 71%)
30K18.64 mi3.11 mi13218-6843678-4663678-46615887(Top 56%)5395(Top 44%)5395(Top 99%)
20M20.00 mi1.36 mi13853-6354060-3824060-38219942(Top 70%)7751(Top 63%)7751(Top 142%)
21M21.00 mi1.00 mi14473-6204422-3624422-36220726(Top 73%)8301(Top 68%)8301(Top 152%)
35K21.75 mi0.75 mi15040-5674764-3424764-34223343(Top 82%)9722(Top 80%)9722(Top 178%)
23M23.00 mi1.25 mi15490-4505066-3025066-30220692(Top 73%)8398(Top 69%)8398(Top 154%)
24M24.00 mi1.00 mi15784-2945261-1955261-19521006(Top 74%)8599(Top 70%)8599(Top 157%)
40K24.85 mi0.85 mi16038-2545427-1665427-16620715(Top 73%)8511(Top 70%)8511(Top 156%)
25.2M25.20 mi0.35 mi16119-815480-535480-5319970(Top 70%)8131(Top 66%)8131(Top 149%)
Finish26.22 mi1.02 mi16236-1175561-815561-8118680(Top 66%)7415(Top 61%)7415(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12268

Females

3055

F18-39

3055

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12318

Females

2990

F18-39

2990

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12268

Females

3055

F18-39

3055

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

13165

Females

3640

F18-39

3640

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13866

Females

4005

F18-39

4005

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13392

Females

3881

F18-39

3881

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15887

Females

5395

F18-39

5395

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19942

Females

7751

F18-39

7751

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20726

Females

8301

F18-39

8301

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23343

Females

9722

F18-39

9722

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20692

Females

8398

F18-39

8398

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

21006

Females

8599

F18-39

8599

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20715

Females

8511

F18-39

8511

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19970

Females

8131

F18-39

8131

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18680

Females

7415

F18-39

7415

Passing Analysis

Category:
Athletes Passed
873
Passed By
5285
Net Change
-4412
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11824
5K → 10K175371-196#11824#12020
10K → 15K160229-69#12020#12089
15K → 20K127348-221#12089#12310
20K → Half1293-81#12310#12391
Half → 25K114257-143#12391#12534
25K → 30K100784-684#12534#13218
30K → 20M30665-635#13218#13853
20M → 21M20640-620#13853#14473
21M → 35K9576-567#14473#15040
35K → 23M36486-450#15040#15490
23M → 24M14308-294#15490#15784
24M → 40K26280-254#15784#16038
40K → 25.2M1293-81#16038#16119
25.2M → Finish38155-117#16119#16236
TOTALS8735285-4412
📊

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