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BOSTON MARATHON 2025

Mary O'Connor

Bib: 26617•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

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
10:31/mi
32:41
↑ 97↓ 3451.5%
10K· 6.21 mi
10:33/mi
1:05:27
↑ 79↓ 1380.4%
15K· 9.32 mi
10:29/mi
1:38:00
↑ 67↓ 78
20K· 12.43 mi
10:41/mi
2:11:13
↑ 106↓ 860.1%
Half· 13.11 mi
10:24/mi
2:18:19
↑ 19↓ 370.5%
25K· 15.53 mi
11:34/mi
2:46:21
↑ 66↓ 880.2%
30K· 18.64 mi
11:49/mi
3:23:04
↑ 181↓ 1480.2%
20M
11:13/mi
3:38:18
↑ 64↓ 500.2%
21M
11:44/mi
3:50:02
↑ 106↓ 241.6%
35K· 21.75 mi
11:00/mi
3:58:16
↑ 17↓ 861.7%
23M
11:52/mi
4:13:08
↑ 23↓ 630.6%
24M
10:35/mi
4:23:43
↓ 821.3%
40K· 24.85 mi
10:58/mi
4:33:06
↓ 200.3%
25.2M
12:02/mi
4:37:15
↑ 13↓ 160.2%
Finish· 26.22 mi
10:12/mi
4:47:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:19
Pace10:33 /mi
2nd Half
Distance13.11 mi
Time2:29:20
Pace11:23 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3732:4110:3132:41
10:31
-
10K
6.21 mi12:22:231:05:2710:3232:46
10:33
+0:02
15K
9.32 mi12:54:561:38:0010:3132:33
10:29
-0:04
20K
12.43 mi13:28:092:11:1310:3433:13
10:41
+0:12
Half
13.11 mi13:35:152:18:1910:337:06
10:24
-0:17
25K
15.53 mi14:03:172:46:2110:4328:02
11:34
+1:10
30K
18.64 mi14:40:003:23:0410:5436:43
11:49
+0:15
20M
20.00 mi14:55:143:38:1810:5515:14
11:13
-0:36
21M
21.00 mi15:06:583:50:0210:5711:44
11:44
+0:31
35K
21.75 mi15:15:123:58:1610:578:14
11:00
-0:44
23M
23.00 mi15:30:044:13:0811:0014:52
11:52
+0:52
24M
24.00 mi15:40:394:23:4310:5910:35
10:35
-1:17
40K
24.85 mi15:50:024:33:0610:599:23
10:58
+0:23
25.2M
25.20 mi15:54:114:37:1511:004:09
12:02
+1:04
Finish
26.22 mi16:04:354:47:3910:5910:24
10:12
-1:50

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

10:12 /mi

Average Pace

10:59 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:09

67% of race

Time at Steady Pace

1:35:30

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:58 /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 mi11:49:3732:4110:3132:41
10:31
#26802
10K
6.21 mi12:22:231:05:2710:3232:46
10:33
#26555
15K
9.32 mi12:54:561:38:0010:3132:33
10:29
#26305
20K
12.43 mi13:28:092:11:1310:3433:13
10:41
#26079
Half
13.11 mi13:35:152:18:1910:337:06
10:24
#26049
25K
15.53 mi14:03:172:46:2110:4328:02
11:34
#26048
30K
18.64 mi14:40:003:23:0410:5436:43
11:49
#25897
20M
20.00 mi14:55:143:38:1810:5515:14
11:13
#25765
21M
21.00 mi15:06:583:50:0210:5711:44
11:44
#25632
35K
21.75 mi15:15:123:58:1610:578:14
11:00
#25593
23M
23.00 mi15:30:044:13:0811:0014:52
11:52
#25591
24M
24.00 mi15:40:394:23:4310:5910:35
10:35
#25491
40K
24.85 mi15:50:024:33:0610:599:23
10:58
#25409
25.2M
25.20 mi15:54:114:37:1511:004:09
12:02
#25387
Finish
26.22 mi16:04:354:47:3910:5910:24
10:12
#25341
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26802112111121125884(Top 91%)10729(Top 88%)10729(Top 196%)
10K6.21 mi3.10 mi26555+24711081+13011081+13026343(Top 93%)10981(Top 90%)10981(Top 201%)
15K9.32 mi3.11 mi26305+25010950+13110950+13125884(Top 91%)10729(Top 88%)10729(Top 196%)
20K12.43 mi3.11 mi26079+22610832+11810832+11825521(Top 90%)10548(Top 86%)10548(Top 193%)
Half13.11 mi0.68 mi26049+3010816+1610816+1625615(Top 90%)10609(Top 87%)10609(Top 194%)
25K15.53 mi2.42 mi26048+110824-810824-825935(Top 91%)10828(Top 89%)10828(Top 198%)
30K18.64 mi3.11 mi25897+15110764+6010764+6025339(Top 89%)10578(Top 87%)10578(Top 193%)
20M20.00 mi1.36 mi25765+13210714+5010714+5024005(Top 85%)9961(Top 81%)9961(Top 182%)
21M21.00 mi1.00 mi25632+13310652+6210652+6223071(Top 81%)9535(Top 78%)9535(Top 174%)
35K21.75 mi0.75 mi25593+3910641+1110641+1124181(Top 85%)10161(Top 83%)10161(Top 186%)
23M23.00 mi1.25 mi25591+210651-1010651-1024904(Top 88%)10554(Top 86%)10554(Top 193%)
24M24.00 mi1.00 mi25491+10010610+4110610+4123018(Top 81%)9654(Top 79%)9654(Top 177%)
40K24.85 mi0.85 mi25409+8210573+3710573+3723063(Top 81%)9743(Top 80%)9743(Top 178%)
25.2M25.20 mi0.35 mi25387+2210564+910564+923244(Top 82%)9794(Top 80%)9794(Top 179%)
Finish26.22 mi1.02 mi25341+4610543+2110543+2123515(Top 83%)9937(Top 81%)9937(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25884

Females

10729

F18-39

10729

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

26343

Females

10981

F18-39

10981

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25884

Females

10729

F18-39

10729

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

25521

Females

10548

F18-39

10548

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25615

Females

10609

F18-39

10609

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

25935

Females

10828

F18-39

10828

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25339

Females

10578

F18-39

10578

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24005

Females

9961

F18-39

9961

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

23071

Females

9535

F18-39

9535

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24181

Females

10161

F18-39

10161

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24904

Females

10554

F18-39

10554

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23018

Females

9654

F18-39

9654

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23063

Females

9743

F18-39

9743

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23244

Females

9794

F18-39

9794

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

23515

Females

9937

F18-39

9937

Passing Analysis

Category:
Athletes Passed
1798
Passed By
337
Net Change
+1461
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26802
5K → 10K32073+247#26802#26555
10K → 15K27222+250#26555#26305
15K → 20K24519+226#26305#26079
20K → Half4313+30#26079#26049
Half → 25K8180+1#26049#26048
25K → 30K19241+151#26048#25897
30K → 20M1375+132#25897#25765
20M → 21M1374+133#25765#25632
21M → 35K5415+39#25632#25593
35K → 23M4543+2#25593#25591
23M → 24M1022+100#25591#25491
24M → 40K875+82#25491#25409
40K → 25.2M264+22#25409#25387
25.2M → Finish5711+46#25387#25341
TOTALS1798337+1461
📊

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