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BOSTON MARATHON 2025

Eileen O'Connor

Bib: 20744•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F50-54)
#0 / 1303
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:19
Rank: #17732
Start → 5K
25:19 | 8:09/mi
10K· 6.21 mi
50:47
Rank: #17790 (-58)
5K → 10K
25:28 | 8:12/mi
15K· 9.32 mi
1:16:17
Rank: #17663 (+127)
10K → 15K
25:30 | 8:12/mi
20K· 12.43 mi
1:41:57
Rank: #17369 (+294)
15K → 20K
25:40 | 8:16/mi
Half· 13.11 mi
1:47:30
Rank: #17326 (+43)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:07:27
Rank: #16988 (+338)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:33:59
Rank: #16593 (+395)
25K → 30K
26:32 | 8:32/mi
20M
2:45:41
Rank: #16396 (+197)
30K → 20M
11:42 | 8:37/mi
21M
2:54:40
Rank: #16200 (+196)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
3:00:55
Rank: #16106 (+94)
21M → 35K
6:15 | 8:21/mi
23M
3:11:37
Rank: #15893 (+213)
35K → 23M
10:42 | 8:33/mi
24M
3:19:59
Rank: #15777 (+116)
23M → 24M
8:22 | 8:22/mi
40K· 24.85 mi
3:27:15
Rank: #15669 (+108)
24M → 40K
7:16 | 8:30/mi
25.2M
3:30:28
Rank: #15629 (+40)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:38:50
Rank: #15572 (+57)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:30
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:51:20
Pace8:30 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3325:198:0925:19
8:09
-
10K
6.21 mi11:44:0150:478:1025:28
8:12
+0:03
15K
9.32 mi12:09:311:16:178:1125:30
8:12
0:00
20K
12.43 mi12:35:111:41:578:1225:40
8:16
+0:04
Half
13.11 mi12:40:441:47:308:125:33
8:08
-0:08
25K
15.53 mi13:00:412:07:278:1219:57
8:14
+0:06
30K
18.64 mi13:27:132:33:598:1626:32
8:32
+0:18
20M
20.00 mi13:38:552:45:418:1711:42
8:37
+0:05
21M
21.00 mi13:47:542:54:408:198:59
8:59
+0:22
35K
21.75 mi13:54:093:00:558:196:15
8:21
-0:38
23M
23.00 mi14:04:513:11:378:2010:42
8:33
+0:12
24M
24.00 mi14:13:133:19:598:208:22
8:22
-0:11
40K
24.85 mi14:20:293:27:158:207:16
8:30
+0:08
25.2M
25.20 mi14:23:423:30:288:213:13
9:20
+0:50
Finish
26.22 mi14:32:043:38:508:218:22
8:13
-1:07

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

8:08 /mi

Average Pace

8:21 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:38

94% of race

Time at Steady Pace

12:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:3325:198:0925:19
8:09
#17732
10K
6.21 mi11:44:0150:478:1025:28
8:12
#17790
15K
9.32 mi12:09:311:16:178:1125:30
8:12
#17663
20K
12.43 mi12:35:111:41:578:1225:40
8:16
#17369
Half
13.11 mi12:40:441:47:308:125:33
8:08
#17326
25K
15.53 mi13:00:412:07:278:1219:57
8:14
#16988
30K
18.64 mi13:27:132:33:598:1626:32
8:32
#16593
20M
20.00 mi13:38:552:45:418:1711:42
8:37
#16396
21M
21.00 mi13:47:542:54:408:198:59
8:59
#16200
35K
21.75 mi13:54:093:00:558:196:15
8:21
#16106
23M
23.00 mi14:04:513:11:378:2010:42
8:33
#15893
24M
24.00 mi14:13:133:19:598:208:22
8:22
#15777
40K
24.85 mi14:20:293:27:158:207:16
8:30
#15669
25.2M
25.20 mi14:23:423:30:288:213:13
9:20
#15629
Finish
26.22 mi14:32:043:38:508:218:22
8:13
#15572
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi177326175617517439(Top 61%)5976(Top 49%)5976(Top 459%)
10K6.21 mi3.10 mi17790-586200-256200-2517871(Top 63%)6219(Top 51%)6219(Top 477%)
15K9.32 mi3.11 mi17663+1276120+806120+8017439(Top 61%)5976(Top 49%)5976(Top 459%)
20K12.43 mi3.11 mi17369+2945957+1635957+16316705(Top 59%)5606(Top 46%)5606(Top 430%)
Half13.11 mi0.68 mi17326+435940+175940+1716884(Top 59%)5687(Top 47%)5687(Top 436%)
25K15.53 mi2.42 mi16988+3385753+1875753+18715489(Top 55%)5015(Top 41%)5015(Top 385%)
30K18.64 mi3.11 mi16593+3955577+1765577+17615019(Top 53%)4918(Top 40%)4918(Top 377%)
20M20.00 mi1.36 mi16396+1975493+845493+8414518(Top 51%)4787(Top 39%)4787(Top 367%)
21M21.00 mi1.00 mi16200+1965409+845409+8413436(Top 47%)4342(Top 36%)4342(Top 333%)
35K21.75 mi0.75 mi16106+945384+255384+2514638(Top 52%)5041(Top 41%)5041(Top 387%)
23M23.00 mi1.25 mi15893+2135306+785306+7813624(Top 48%)4608(Top 38%)4608(Top 354%)
24M24.00 mi1.00 mi15777+1165257+495257+4913689(Top 48%)4663(Top 38%)4663(Top 358%)
40K24.85 mi0.85 mi15669+1085213+445213+4413462(Top 47%)4689(Top 38%)4689(Top 360%)
25.2M25.20 mi0.35 mi15629+405207+65207+613678(Top 48%)4858(Top 40%)4858(Top 373%)
Finish26.22 mi1.02 mi15572+575194+135194+1314364(Top 51%)5137(Top 42%)5137(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17439

Females

5976

F50-54

5976

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17871

Females

6219

F50-54

6219

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17439

Females

5976

F50-54

5976

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16705

Females

5606

F50-54

5606

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16884

Females

5687

F50-54

5687

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15489

Females

5015

F50-54

5015

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15019

Females

4918

F50-54

4918

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14518

Females

4787

F50-54

4787

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13436

Females

4342

F50-54

4342

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14638

Females

5041

F50-54

5041

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13624

Females

4608

F50-54

4608

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13689

Females

4663

F50-54

4663

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13462

Females

4689

F50-54

4689

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13678

Females

4858

F50-54

4858

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14364

Females

5137

F50-54

5137

Passing Analysis

Category:
Athletes Passed
2901
Passed By
741
Net Change
+2160
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17732
5K → 10K258316-58#17732#17790
10K → 15K254127+127#17790#17663
15K → 20K34652+294#17663#17369
20K → Half5916+43#17369#17326
Half → 25K35921+338#17326#16988
25K → 30K44550+395#16988#16593
30K → 20M22326+197#16593#16396
20M → 21M21418+196#16396#16200
21M → 35K11117+94#16200#16106
35K → 23M22512+213#16106#15893
23M → 24M13014+116#15893#15777
24M → 40K13123+108#15777#15669
40K → 25.2M5111+40#15669#15629
25.2M → Finish9538+57#15629#15572
TOTALS2901741+2160
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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