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BOSTON MARATHON 2025

Stephanie Aker

Bib: 28124•F

MA

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

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
30:30
Rank: #25126
Start → 5K
30:30 | 9:49/mi
10K· 6.21 mi
59:19
Rank: #24307 (+819)
5K → 10K
28:49 | 9:17/mi
15K· 9.32 mi
1:27:56
Rank: #23845 (+462)
10K → 15K
28:37 | 9:13/mi
20K· 12.43 mi
1:57:08
Rank: #23556 (+289)
15K → 20K
29:12 | 9:24/mi
Half· 13.11 mi
2:03:46
Rank: #23591 (-35)
20K → Half
6:38 | 9:43/mi
25K· 15.53 mi
2:31:41
Rank: #24139 (-548)
Half → 25K
27:55 | 11:31/mi
30K· 18.64 mi
3:14:26
Rank: #25093 (-954)
25K → 30K
42:45 | 13:46/mi
20M
3:34:58
Rank: #25501 (-408)
30K → 20M
20:32 | 15:07/mi
21M
3:53:00
Rank: #25872 (-371)
20M → 21M
18:02 | 18:02/mi
35K· 21.75 mi
4:00:52
Rank: #25806 (+66)
21M → 35K
7:52 | 10:31/mi
23M
4:17:15
Rank: #25870 (-64)
35K → 23M
16:23 | 13:05/mi
24M
4:33:28
Rank: #26126 (-256)
23M → 24M
16:13 | 16:13/mi
40K· 24.85 mi
4:42:34
Rank: #26051 (+75)
24M → 40K
9:06 | 10:39/mi
25.2M
4:46:46
Rank: #26031 (+20)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:57:34
Rank: #26004 (+27)
25.2M → Finish
10:48 | 10:36/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:46
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:53:48
Pace13:15 /mi
📊Positive Split: 40.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1630:309:4930:30
9:49
-
10K
6.21 mi12:19:0559:199:3328:49
9:17
-0:32
15K
9.32 mi12:47:421:27:569:2628:37
9:13
-0:04
20K
12.43 mi13:16:541:57:089:2629:12
9:24
+0:11
Half
13.11 mi13:23:322:03:469:266:38
9:43
+0:19
25K
15.53 mi13:51:272:31:419:4627:55
11:31
+1:48
30K
18.64 mi14:34:123:14:2610:2642:45
13:46
+2:15
20M
20.00 mi14:54:443:34:5810:4520:32
15:07
+1:21
21M
21.00 mi15:12:463:53:0011:0618:02
18:02
+2:55
35K
21.75 mi15:20:384:00:5211:057:52
10:31
-7:31
23M
23.00 mi15:37:014:17:1511:1116:23
13:05
+2:34
24M
24.00 mi15:53:144:33:2811:2416:13
16:13
+3:08
40K
24.85 mi16:02:204:42:3411:229:06
10:39
-5:34
25.2M
25.20 mi16:06:324:46:4611:234:12
12:11
+1:32
Finish
26.22 mi16:17:204:57:3411:2110:48
10:36
-1:35

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

9:13 /mi

Average Pace

11:21 /mi

Slowest Pace

18:02 /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

57:26

19% of race

Time at Steady Pace

2:02:01

41% of race

Time at Slower Pace

1:58:07

40% of race

Average Pace: 11:21 /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 mi11:50:1630:309:4930:30
9:49
#25126
10K
6.21 mi12:19:0559:199:3328:49
9:17
#24307
15K
9.32 mi12:47:421:27:569:2628:37
9:13
#23845
20K
12.43 mi13:16:541:57:089:2629:12
9:24
#23556
Half
13.11 mi13:23:322:03:469:266:38
9:43
#23591
25K
15.53 mi13:51:272:31:419:4627:55
11:31
#24139
30K
18.64 mi14:34:123:14:2610:2642:45
13:46
#25093
20M
20.00 mi14:54:443:34:5810:4520:32
15:07
#25501
21M
21.00 mi15:12:463:53:0011:0618:02
18:02
#25872
35K
21.75 mi15:20:384:00:5211:057:52
10:31
#25806
23M
23.00 mi15:37:014:17:1511:1116:23
13:05
#25870
24M
24.00 mi15:53:144:33:2811:2416:13
16:13
#26126
40K
24.85 mi16:02:204:42:3411:229:06
10:39
#26051
25.2M
25.20 mi16:06:324:46:4611:234:12
12:11
#26031
Finish
26.22 mi16:17:204:57:3411:2110:48
10:36
#26004
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25126102771027722886(Top 81%)9041(Top 74%)9041(Top 165%)
10K6.21 mi3.10 mi24307+8199851+4269851+42623437(Top 83%)9379(Top 77%)9379(Top 171%)
15K9.32 mi3.11 mi23845+4629593+2589593+25822886(Top 81%)9041(Top 74%)9041(Top 165%)
20K12.43 mi3.11 mi23556+2899436+1579436+15722571(Top 79%)8904(Top 73%)8904(Top 163%)
Half13.11 mi0.68 mi23591-359459-239459-2324137(Top 85%)9788(Top 80%)9788(Top 179%)
25K15.53 mi2.42 mi24139-5489783-3249783-32425876(Top 91%)10789(Top 88%)10789(Top 197%)
30K18.64 mi3.11 mi25093-95410331-54810331-54827328(Top 96%)11675(Top 95%)11675(Top 213%)
20M20.00 mi1.36 mi25501-40810574-24310574-24327916(Top 98%)12016(Top 98%)12016(Top 220%)
21M21.00 mi1.00 mi25872-37110784-21010784-21028282(Top 100%)12179(Top 100%)12179(Top 223%)
35K21.75 mi0.75 mi25806+6610751+3310751+3323179(Top 82%)9651(Top 79%)9651(Top 176%)
23M23.00 mi1.25 mi25870-6410791-4010791-4026471(Top 93%)11331(Top 93%)11331(Top 207%)
24M24.00 mi1.00 mi26126-25610947-15610947-15628255(Top 99%)12185(Top 100%)12185(Top 223%)
40K24.85 mi0.85 mi26051+7510903+4410903+4422272(Top 78%)9353(Top 76%)9353(Top 171%)
25.2M25.20 mi0.35 mi26031+2010895+810895+823544(Top 83%)9947(Top 81%)9947(Top 182%)
Finish26.22 mi1.02 mi26004+2710897-210897-224484(Top 86%)10400(Top 85%)10400(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

22886

Females

9041

F18-39

9041

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23437

Females

9379

F18-39

9379

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

22886

Females

9041

F18-39

9041

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

22571

Females

8904

F18-39

8904

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24137

Females

9788

F18-39

9788

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25876

Females

10789

F18-39

10789

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

27328

Females

11675

F18-39

11675

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

27916

Females

12016

F18-39

12016

20M→21M

20.0 - 21.0 mi

Top 100%
×8stories
+106ft-24ft

Overall

28282

Females

12179

F18-39

12179

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

23179

Females

9651

F18-39

9651

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

26471

Females

11331

F18-39

11331

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

28255

Females

12185

F18-39

12185

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22272

Females

9353

F18-39

9353

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23544

Females

9947

F18-39

9947

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24484

Females

10400

F18-39

10400

Passing Analysis

Category:
Athletes Passed
1907
Passed By
2785
Net Change
-878
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25126
5K → 10K83112+819#25126#24307
10K → 15K48119+462#24307#23845
15K → 20K31223+289#23845#23556
20K → Half1045-35#23556#23591
Half → 25K20568-548#23591#24139
25K → 30K11965-954#24139#25093
30K → 20M8416-408#25093#25501
20M → 21M4375-371#25501#25872
21M → 35K682+66#25872#25806
35K → 23M2286-64#25806#25870
23M → 24M2258-256#25870#26126
24M → 40K750+75#26126#26051
40K → 25.2M233+20#26051#26031
25.2M → Finish4013+27#26031#26004
TOTALS19072785-878
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing