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BOSTON MARATHON 2025

Delia Oconnor

Bib: 23100•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F60-64)
#0 / 624
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:25
Rank: #19902
Start → 5K
26:25 | 8:30/mi
10K· 6.21 mi
52:56
Rank: #19956 (-54)
5K → 10K
26:31 | 8:32/mi
15K· 9.32 mi
1:19:34
Rank: #19896 (+60)
10K → 15K
26:38 | 8:34/mi
20K· 12.43 mi
1:46:36
Rank: #19753 (+143)
15K → 20K
27:02 | 8:42/mi
Half· 13.11 mi
1:52:29
Rank: #19763 (-10)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:13:37
Rank: #19516 (+247)
Half → 25K
21:08 | 8:43/mi
30K· 18.64 mi
2:41:47
Rank: #19220 (+296)
25K → 30K
28:10 | 9:04/mi
20M
2:53:58
Rank: #19021 (+199)
30K → 20M
12:11 | 8:58/mi
21M
3:03:18
Rank: #18777 (+244)
20M → 21M
9:20 | 9:20/mi
35K· 21.75 mi
3:10:00
Rank: #18745 (+32)
21M → 35K
6:42 | 8:57/mi
23M
3:21:12
Rank: #18567 (+178)
35K → 23M
11:12 | 8:57/mi
24M
3:29:56
Rank: #18434 (+133)
23M → 24M
8:44 | 8:44/mi
40K· 24.85 mi
3:37:39
Rank: #18360 (+74)
24M → 40K
7:43 | 9:02/mi
25.2M
3:40:58
Rank: #18300 (+60)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:49:46
Rank: #18275 (+25)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:29
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4826:258:3026:25
8:30
-
10K
6.21 mi11:51:1952:568:3126:31
8:32
+0:02
15K
9.32 mi12:17:571:19:348:3226:38
8:34
+0:02
20K
12.43 mi12:44:591:46:368:3527:02
8:42
+0:08
Half
13.11 mi12:50:521:52:298:355:53
8:37
-0:05
25K
15.53 mi13:12:002:13:378:3621:08
8:43
+0:06
30K
18.64 mi13:40:102:41:478:4128:10
9:04
+0:21
20M
20.00 mi13:52:212:53:588:4212:11
8:58
-0:06
21M
21.00 mi14:01:413:03:188:449:20
9:20
+0:22
35K
21.75 mi14:08:233:10:008:446:42
8:57
-0:23
23M
23.00 mi14:19:353:21:128:4511:12
8:57
0:00
24M
24.00 mi14:28:193:29:568:458:44
8:44
-0:13
40K
24.85 mi14:36:023:37:398:457:43
9:02
+0:18
25.2M
25.20 mi14:39:213:40:588:463:19
9:37
+0:35
Finish
26.22 mi14:48:093:49:468:468:48
8:38
-0:59

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

8:30 /mi

Average Pace

8:46 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:27

99% of race

Time at Steady Pace

3:19

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:24:4826:258:3026:25
8:30
#19902
10K
6.21 mi11:51:1952:568:3126:31
8:32
#19956
15K
9.32 mi12:17:571:19:348:3226:38
8:34
#19896
20K
12.43 mi12:44:591:46:368:3527:02
8:42
#19753
Half
13.11 mi12:50:521:52:298:355:53
8:37
#19763
25K
15.53 mi13:12:002:13:378:3621:08
8:43
#19516
30K
18.64 mi13:40:102:41:478:4128:10
9:04
#19220
20M
20.00 mi13:52:212:53:588:4212:11
8:58
#19021
21M
21.00 mi14:01:413:03:188:449:20
9:20
#18777
35K
21.75 mi14:08:233:10:008:446:42
8:57
#18745
23M
23.00 mi14:19:353:21:128:4511:12
8:57
#18567
24M
24.00 mi14:28:193:29:568:458:44
8:44
#18434
40K
24.85 mi14:36:023:37:398:457:43
9:02
#18360
25.2M
25.20 mi14:39:213:40:588:463:19
9:37
#18300
Finish
26.22 mi14:48:093:49:468:468:48
8:38
#18275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi199027445744519771(Top 70%)7313(Top 60%)7313(Top 1172%)
10K6.21 mi3.10 mi19956-547444+17444+120005(Top 70%)7465(Top 61%)7465(Top 1196%)
15K9.32 mi3.11 mi19896+607405+397405+3919771(Top 70%)7313(Top 60%)7313(Top 1172%)
20K12.43 mi3.11 mi19753+1437335+707335+7019426(Top 68%)7156(Top 59%)7156(Top 1147%)
Half13.11 mi0.68 mi19763-107342-77342-719942(Top 70%)7430(Top 61%)7430(Top 1191%)
25K15.53 mi2.42 mi19516+2477207+1357207+13518504(Top 65%)6705(Top 55%)6705(Top 1075%)
30K18.64 mi3.11 mi19220+2967085+1227085+12218015(Top 63%)6578(Top 54%)6578(Top 1054%)
20M20.00 mi1.36 mi19021+1996991+946991+9416640(Top 59%)5948(Top 49%)5948(Top 953%)
21M21.00 mi1.00 mi18777+2446877+1146877+11415351(Top 54%)5381(Top 44%)5381(Top 862%)
35K21.75 mi0.75 mi18745+326876+16876+118036(Top 63%)6918(Top 57%)6918(Top 1109%)
23M23.00 mi1.25 mi18567+1786804+726804+7215986(Top 56%)5886(Top 48%)5886(Top 943%)
24M24.00 mi1.00 mi18434+1336758+466758+4615964(Top 56%)5918(Top 48%)5918(Top 948%)
40K24.85 mi0.85 mi18360+746746+126746+1216486(Top 58%)6309(Top 52%)6309(Top 1011%)
25.2M25.20 mi0.35 mi18300+606725+216725+2115277(Top 54%)5718(Top 47%)5718(Top 916%)
Finish26.22 mi1.02 mi18275+256733-86733-817115(Top 60%)6620(Top 54%)6620(Top 1061%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19771

Females

7313

F60-64

7313

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

20005

Females

7465

F60-64

7465

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19771

Females

7313

F60-64

7313

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19426

Females

7156

F60-64

7156

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19942

Females

7430

F60-64

7430

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18504

Females

6705

F60-64

6705

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

18015

Females

6578

F60-64

6578

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16640

Females

5948

F60-64

5948

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15351

Females

5381

F60-64

5381

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

18036

Females

6918

F60-64

6918

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15986

Females

5886

F60-64

5886

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15964

Females

5918

F60-64

5918

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16486

Females

6309

F60-64

6309

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15277

Females

5718

F60-64

5718

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17115

Females

6620

F60-64

6620

Passing Analysis

Category:
Athletes Passed
2555
Passed By
928
Net Change
+1627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19902
5K → 10K249303-54#19902#19956
10K → 15K223163+60#19956#19896
15K → 20K258115+143#19896#19753
20K → Half3141-10#19753#19763
Half → 25K28942+247#19763#19516
25K → 30K37377+296#19516#19220
30K → 20M21819+199#19220#19021
20M → 21M25713+244#19021#18777
21M → 35K6533+32#18777#18745
35K → 23M19921+178#18745#18567
23M → 24M15118+133#18567#18434
24M → 40K10834+74#18434#18360
40K → 25.2M644+60#18360#18300
25.2M → Finish7045+25#18300#18275
TOTALS2555928+1627
📊

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