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BOSTON MARATHON 2025

Stephanie Douglass

Bib: 21454•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:33/mi
26:34
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:19
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:20:16
↑ 67↓ 78
20K· 12.43 mi
8:46/mi
1:47:31
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:53:29
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:15:29
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:45:55
↑ 181↓ 1480.2%
20M
10:21/mi
2:59:59
↑ 64↓ 500.2%
21M
10:49/mi
3:10:48
↑ 106↓ 241.6%
35K· 21.75 mi
10:18/mi
3:18:30
↑ 17↓ 861.7%
23M
11:08/mi
3:32:27
↑ 23↓ 630.6%
24M
10:35/mi
3:43:02
↓ 821.3%
40K· 24.85 mi
10:56/mi
3:52:23
↓ 200.3%
25.2M
12:14/mi
3:56:36
↑ 13↓ 160.2%
Finish· 26.22 mi
10:54/mi
4:07:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:29
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:14:13
Pace10:14 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0126:348:3326:34
8:33
-
10K
6.21 mi11:50:4653:198:3526:45
8:37
+0:04
15K
9.32 mi12:17:431:20:168:3726:57
8:40
+0:03
20K
12.43 mi12:44:581:47:318:3927:15
8:46
+0:06
Half
13.11 mi12:50:561:53:298:395:58
8:45
-0:01
25K
15.53 mi13:12:562:15:298:4322:00
9:04
+0:19
30K
18.64 mi13:43:222:45:558:5430:26
9:48
+0:44
20M
20.00 mi13:57:262:59:599:0014:04
10:21
+0:33
21M
21.00 mi14:08:153:10:489:0510:49
10:49
+0:28
35K
21.75 mi14:15:573:18:309:087:42
10:18
-0:31
23M
23.00 mi14:29:543:32:279:1413:57
11:08
+0:50
24M
24.00 mi14:40:293:43:029:1810:35
10:35
-0:33
40K
24.85 mi14:49:503:52:239:219:21
10:56
+0:21
25.2M
25.20 mi14:54:033:56:369:234:13
12:14
+1:18
Finish
26.22 mi15:05:094:07:429:2711:06
10:54
-1:20

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

8:33 /mi

Average Pace

9:27 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:29

55% of race

Time at Steady Pace

1:13:36

30% of race

Time at Slower Pace

38:37

16% of race

Average Pace: 9:27 /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 mi11:24:0126:348:3326:34
8:33
#20211
10K
6.21 mi11:50:4653:198:3526:45
8:37
#20304
15K
9.32 mi12:17:431:20:168:3726:57
8:40
#20274
20K
12.43 mi12:44:581:47:318:3927:15
8:46
#20143
Half
13.11 mi12:50:561:53:298:395:58
8:45
#20161
25K
15.53 mi13:12:562:15:298:4322:00
9:04
#20189
30K
18.64 mi13:43:222:45:558:5430:26
9:48
#20375
20M
20.00 mi13:57:262:59:599:0014:04
10:21
#20555
21M
21.00 mi14:08:153:10:489:0510:49
10:49
#20586
35K
21.75 mi14:15:573:18:309:087:42
10:18
#20696
23M
23.00 mi14:29:543:32:279:1413:57
11:08
#20977
24M
24.00 mi14:40:293:43:029:1810:35
10:35
#21088
40K
24.85 mi14:49:503:52:239:219:21
10:56
#21194
25.2M
25.20 mi14:54:033:56:369:234:13
12:14
#21235
Finish
26.22 mi15:05:094:07:429:2711:06
10:54
#21429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi202117625762520340(Top 72%)7623(Top 62%)7623(Top 767%)
10K6.21 mi3.10 mi20304-937651-267651-2620414(Top 72%)7696(Top 63%)7696(Top 774%)
15K9.32 mi3.11 mi20274+307626+257626+2520340(Top 72%)7623(Top 62%)7623(Top 767%)
20K12.43 mi3.11 mi20143+1317553+737553+7319810(Top 70%)7381(Top 60%)7381(Top 743%)
Half13.11 mi0.68 mi20161-187568-157568-1520692(Top 73%)7877(Top 64%)7877(Top 792%)
25K15.53 mi2.42 mi20189-287597-297597-2920251(Top 71%)7678(Top 63%)7678(Top 772%)
30K18.64 mi3.11 mi20375-1867746-1497746-14920988(Top 74%)8223(Top 67%)8223(Top 827%)
20M20.00 mi1.36 mi20555-1807859-1137859-11322017(Top 78%)8897(Top 73%)8897(Top 895%)
21M21.00 mi1.00 mi20586-317899-407899-4020904(Top 74%)8401(Top 69%)8401(Top 845%)
35K21.75 mi0.75 mi20696-1107971-727971-7222674(Top 80%)9373(Top 77%)9373(Top 943%)
23M23.00 mi1.25 mi20977-2818148-1778148-17723551(Top 83%)9872(Top 81%)9872(Top 993%)
24M24.00 mi1.00 mi21088-1118241-938241-9323039(Top 81%)9659(Top 79%)9659(Top 972%)
40K24.85 mi0.85 mi21194-1068309-688309-6823005(Top 81%)9702(Top 79%)9702(Top 976%)
25.2M25.20 mi0.35 mi21235-418339-308339-3023673(Top 83%)10005(Top 82%)10005(Top 1007%)
Finish26.22 mi1.02 mi21429-1948463-1248463-12425164(Top 89%)10725(Top 88%)10725(Top 1079%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20340

Females

7623

F55-59

7623

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20414

Females

7696

F55-59

7696

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20340

Females

7623

F55-59

7623

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19810

Females

7381

F55-59

7381

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20692

Females

7877

F55-59

7877

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20251

Females

7678

F55-59

7678

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20988

Females

8223

F55-59

8223

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22017

Females

8897

F55-59

8897

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

20904

Females

8401

F55-59

8401

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22674

Females

9373

F55-59

9373

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23551

Females

9872

F55-59

9872

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23039

Females

9659

F55-59

9659

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23005

Females

9702

F55-59

9702

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23673

Females

10005

F55-59

10005

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25164

Females

10725

F55-59

10725

Passing Analysis

Category:
Athletes Passed
1306
Passed By
2524
Net Change
-1218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20211
5K → 10K234327-93#20211#20304
10K → 15K204174+30#20304#20274
15K → 20K239108+131#20274#20143
20K → Half3149-18#20143#20161
Half → 25K151179-28#20161#20189
25K → 30K174360-186#20189#20375
30K → 20M55235-180#20375#20555
20M → 21M83114-31#20555#20586
21M → 35K26136-110#20586#20696
35K → 23M33314-281#20696#20977
23M → 24M34145-111#20977#21088
24M → 40K22128-106#21088#21194
40K → 25.2M1152-41#21194#21235
25.2M → Finish9203-194#21235#21429
TOTALS13062524-1218
📊

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