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BOSTON MARATHON 2025

Sandra Dyer

Bib: 25040•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
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
10:51/mi
33:43
↑ 97↓ 3451.5%
10K· 6.21 mi
10:22/mi
1:05:56
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:37:46
↑ 67↓ 78
20K· 12.43 mi
10:22/mi
2:09:58
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:16:55
↑ 19↓ 370.5%
25K· 15.53 mi
10:33/mi
2:42:30
↑ 66↓ 880.2%
30K· 18.64 mi
10:49/mi
3:16:05
↑ 181↓ 1480.2%
20M
10:57/mi
3:30:58
↑ 64↓ 500.2%
21M
11:14/mi
3:42:12
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:50:10
↑ 17↓ 861.7%
23M
10:44/mi
4:03:36
↑ 23↓ 630.6%
24M
10:40/mi
4:14:16
↓ 821.3%
40K· 24.85 mi
10:35/mi
4:23:19
↓ 200.3%
25.2M
11:33/mi
4:27:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:58/mi
4:37:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:55
Pace10:27 /mi
2nd Half
Distance13.11 mi
Time2:20:32
Pace10:43 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:5133:4310:5133:43
10:51
-
10K
6.21 mi12:06:041:05:5610:3732:13
10:22
-0:29
15K
9.32 mi12:37:541:37:4610:2931:50
10:15
-0:07
20K
12.43 mi13:10:062:09:5810:2732:12
10:22
+0:07
Half
13.11 mi13:17:032:16:5510:276:57
10:11
-0:11
25K
15.53 mi13:42:382:42:3010:2825:35
10:33
+0:22
30K
18.64 mi14:16:133:16:0510:3133:35
10:49
+0:16
20M
20.00 mi14:31:063:30:5810:3314:53
10:57
+0:08
21M
21.00 mi14:42:203:42:1210:3511:14
11:14
+0:17
35K
21.75 mi14:50:183:50:1010:357:58
10:39
-0:35
23M
23.00 mi15:03:444:03:3610:3513:26
10:44
+0:05
24M
24.00 mi15:14:244:14:1610:3610:40
10:40
-0:04
40K
24.85 mi15:23:274:23:1910:369:03
10:35
-0:05
25.2M
25.20 mi15:27:264:27:1810:363:59
11:33
+0:58
Finish
26.22 mi15:37:354:37:2710:3510:09
9:58
-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

9:58 /mi

Average Pace

10:35 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:22:14

95% of race

Time at Steady Pace

15:13

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:35 /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 mi11:33:5133:4310:5133:43
10:51
#27362
10K
6.21 mi12:06:041:05:5610:3732:13
10:22
#26699
15K
9.32 mi12:37:541:37:4610:2931:50
10:15
#26262
20K
12.43 mi13:10:062:09:5810:2732:12
10:22
#25897
Half
13.11 mi13:17:032:16:5510:276:57
10:11
#25871
25K
15.53 mi13:42:382:42:3010:2825:35
10:33
#25637
30K
18.64 mi14:16:133:16:0510:3133:35
10:49
#25270
20M
20.00 mi14:31:063:30:5810:3314:53
10:57
#25150
21M
21.00 mi14:42:203:42:1210:3511:14
11:14
#25019
35K
21.75 mi14:50:183:50:1010:357:58
10:39
#24987
23M
23.00 mi15:03:444:03:3610:3513:26
10:44
#24871
24M
24.00 mi15:14:244:14:1610:3610:40
10:40
#24808
40K
24.85 mi15:23:274:23:1910:369:03
10:35
#24732
25.2M
25.20 mi15:27:264:27:1810:363:59
11:33
#24698
Finish
26.22 mi15:37:354:37:2710:3510:09
9:58
#24649
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi27362115451154525493(Top 90%)10506(Top 86%)10506(Top 1684%)
10K6.21 mi3.10 mi26699+66311159+38611159+38626037(Top 92%)10811(Top 88%)10811(Top 1733%)
15K9.32 mi3.11 mi26262+43710927+23210927+23225493(Top 90%)10506(Top 86%)10506(Top 1684%)
20K12.43 mi3.11 mi25897+36510730+19710730+19724936(Top 88%)10222(Top 84%)10222(Top 1638%)
Half13.11 mi0.68 mi25871+2610719+1110719+1125198(Top 89%)10373(Top 85%)10373(Top 1662%)
25K15.53 mi2.42 mi25637+23410591+12810591+12824460(Top 86%)9994(Top 82%)9994(Top 1602%)
30K18.64 mi3.11 mi25270+36710430+16110430+16123632(Top 83%)9669(Top 79%)9669(Top 1550%)
20M20.00 mi1.36 mi25150+12010377+5310377+5323486(Top 83%)9676(Top 79%)9676(Top 1551%)
21M21.00 mi1.00 mi25019+13110316+6110316+6121977(Top 77%)8962(Top 73%)8962(Top 1436%)
35K21.75 mi0.75 mi24987+3210304+1210304+1223446(Top 83%)9778(Top 80%)9778(Top 1567%)
23M23.00 mi1.25 mi24871+11610255+4910255+4922572(Top 79%)9381(Top 77%)9381(Top 1503%)
24M24.00 mi1.00 mi24808+6310239+1610239+1623220(Top 82%)9747(Top 80%)9747(Top 1562%)
40K24.85 mi0.85 mi24732+7610215+2410215+2422123(Top 78%)9273(Top 76%)9273(Top 1486%)
25.2M25.20 mi0.35 mi24698+3410199+1610199+1622114(Top 78%)9224(Top 75%)9224(Top 1478%)
Finish26.22 mi1.02 mi24649+4910177+2210177+2222777(Top 80%)9561(Top 78%)9561(Top 1532%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25493

Females

10506

F60-64

10506

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26037

Females

10811

F60-64

10811

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25493

Females

10506

F60-64

10506

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

24936

Females

10222

F60-64

10222

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25198

Females

10373

F60-64

10373

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

24460

Females

9994

F60-64

9994

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23632

Females

9669

F60-64

9669

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23486

Females

9676

F60-64

9676

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21977

Females

8962

F60-64

8962

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23446

Females

9778

F60-64

9778

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22572

Females

9381

F60-64

9381

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23220

Females

9747

F60-64

9747

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22123

Females

9273

F60-64

9273

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22114

Females

9224

F60-64

9224

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22777

Females

9561

F60-64

9561

Passing Analysis

Category:
Athletes Passed
2802
Passed By
89
Net Change
+2713
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27362
5K → 10K6696+663#27362#26699
10K → 15K4403+437#26699#26262
15K → 20K3749+365#26262#25897
20K → Half337+26#25897#25871
Half → 25K2428+234#25871#25637
25K → 30K3703+367#25637#25270
30K → 20M13111+120#25270#25150
20M → 21M1365+131#25150#25019
21M → 35K4210+32#25019#24987
35K → 23M1237+116#24987#24871
23M → 24M696+63#24871#24808
24M → 40K782+76#24808#24732
40K → 25.2M362+34#24732#24698
25.2M → Finish5910+49#24698#24649
TOTALS280289+2713
📊

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