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BOSTON MARATHON 2023

Mary O'connor

Bib: 25356•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
36:23
Rank: #26328
Start → 5K
36:23 | 11:43/mi
10K· 6.21 mi
1:12:24
Rank: #26198 (+130)
5K → 10K
36:01 | 11:36/mi
15K· 9.32 mi
1:48:22
Rank: #26067 (+131)
10K → 15K
35:58 | 11:35/mi
20K· 12.43 mi
2:24:39
Rank: #25909 (+158)
15K → 20K
36:17 | 11:41/mi
Half· 13.11 mi
2:32:25
Rank: #25886 (+23)
20K → Half
7:46 | 11:23/mi
25K· 15.53 mi
3:01:07
Rank: #25756 (+130)
Half → 25K
28:42 | 11:50/mi
30K· 18.64 mi
3:38:00
Rank: #25520 (+236)
25K → 30K
36:53 | 11:52/mi
20M
3:54:20
Rank: #25447 (+73)
30K → 20M
16:20 | 12:01/mi
21M
4:06:44
Rank: #25362 (+85)
20M → 21M
12:24 | 12:24/mi
35K· 21.75 mi
4:15:47
Rank: #25348 (+14)
21M → 35K
9:03 | 12:06/mi
23M
4:31:45
Rank: #25342 (+6)
35K → 23M
15:58 | 12:45/mi
24M
4:44:24
Rank: #25344 (-2)
23M → 24M
12:39 | 12:39/mi
40K· 24.85 mi
4:55:41
Rank: #25338 (+6)
24M → 40K
11:17 | 13:12/mi
25.2M
5:00:00
Rank: #25319 (+19)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
5:10:57
Rank: #25271 (+48)
25.2M → Finish
10:57 | 10:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:25
Pace11:38 /mi
2nd Half
Distance13.11 mi
Time2:38:32
Pace12:06 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3136:2311:4336:23
11:43
-
10K
6.21 mi12:28:321:12:2411:3936:01
11:36
-0:07
15K
9.32 mi13:04:301:48:2211:3835:58
11:35
-0:01
20K
12.43 mi13:40:472:24:3911:3836:17
11:41
+0:06
Half
13.11 mi13:48:332:32:2511:387:46
11:23
-0:18
25K
15.53 mi14:17:153:01:0711:4028:42
11:50
+0:27
30K
18.64 mi14:54:083:38:0011:4236:53
11:52
+0:02
20M
20.00 mi15:10:283:54:2011:4316:20
12:01
+0:09
21M
21.00 mi15:22:524:06:4411:4512:24
12:24
+0:23
35K
21.75 mi15:31:554:15:4711:469:03
12:06
-0:18
23M
23.00 mi15:47:534:31:4511:4915:58
12:45
+0:39
24M
24.00 mi16:00:324:44:2411:5112:39
12:39
-0:06
40K
24.85 mi16:11:494:55:4111:5411:17
13:12
+0:33
25.2M
25.20 mi16:16:085:00:0011:544:19
12:31
-0:41
Finish
26.22 mi16:27:055:10:5711:5210:57
10:45
-1:46

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

10:45 /mi

Average Pace

11:52 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:43

6% of race

Time at Steady Pace

3:55:37

76% of race

Time at Slower Pace

56:37

18% of race

Average Pace: 11:52 /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 mi11:52:3136:2311:4336:23
11:43
#26328
10K
6.21 mi12:28:321:12:2411:3936:01
11:36
#26198
15K
9.32 mi13:04:301:48:2211:3835:58
11:35
#26067
20K
12.43 mi13:40:472:24:3911:3836:17
11:41
#25909
Half
13.11 mi13:48:332:32:2511:387:46
11:23
#25886
25K
15.53 mi14:17:153:01:0711:4028:42
11:50
#25756
30K
18.64 mi14:54:083:38:0011:4236:53
11:52
#25520
20M
20.00 mi15:10:283:54:2011:4316:20
12:01
#25447
21M
21.00 mi15:22:524:06:4411:4512:24
12:24
#25362
35K
21.75 mi15:31:554:15:4711:469:03
12:06
#25348
23M
23.00 mi15:47:534:31:4511:4915:58
12:45
#25342
24M
24.00 mi16:00:324:44:2411:5112:39
12:39
#25344
40K
24.85 mi16:11:494:55:4111:5411:17
13:12
#25338
25.2M
25.20 mi16:16:085:00:0011:544:19
12:31
#25319
Finish
26.22 mi16:27:055:10:5711:5210:57
10:45
#25271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26328112471124725782(Top 97%)10908(Top 95%)10908(Top 223%)
10K6.21 mi3.10 mi26198+13011164+8311164+8326034(Top 98%)11060(Top 97%)11060(Top 226%)
15K9.32 mi3.11 mi26067+13111080+8411080+8425782(Top 97%)10908(Top 95%)10908(Top 223%)
20K12.43 mi3.11 mi25909+15810977+10310977+10325434(Top 96%)10733(Top 94%)10733(Top 220%)
Half13.11 mi0.68 mi25886+2310968+910968+925374(Top 95%)10712(Top 94%)10712(Top 219%)
25K15.53 mi2.42 mi25756+13010906+6210906+6225018(Top 94%)10525(Top 92%)10525(Top 215%)
30K18.64 mi3.11 mi25520+23610785+12110785+12124354(Top 91%)10195(Top 89%)10195(Top 209%)
20M20.00 mi1.36 mi25447+7310752+3310752+3324234(Top 91%)10205(Top 89%)10205(Top 209%)
21M21.00 mi1.00 mi25362+8510710+4210710+4223345(Top 88%)9732(Top 85%)9732(Top 199%)
35K21.75 mi0.75 mi25348+1410709+110709+124780(Top 93%)10547(Top 92%)10547(Top 216%)
23M23.00 mi1.25 mi25342+610707+210707+224855(Top 93%)10563(Top 92%)10563(Top 216%)
24M24.00 mi1.00 mi25344-210713-610713-625205(Top 95%)10787(Top 94%)10787(Top 221%)
40K24.85 mi0.85 mi25338+6107131071325108(Top 94%)10732(Top 94%)10732(Top 220%)
25.2M25.20 mi0.35 mi25319+1910704+910704+923350(Top 88%)9863(Top 86%)9863(Top 202%)
Finish26.22 mi1.02 mi25271+4810685+1910685+1923514(Top 88%)9918(Top 87%)9918(Top 203%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25782

Females

10908

F18-39

10908

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

26034

Females

11060

F18-39

11060

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25782

Females

10908

F18-39

10908

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

25434

Females

10733

F18-39

10733

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25374

Females

10712

F18-39

10712

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

25018

Females

10525

F18-39

10525

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

24354

Females

10195

F18-39

10195

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

24234

Females

10205

F18-39

10205

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

23345

Females

9732

F18-39

9732

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24780

Females

10547

F18-39

10547

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

24855

Females

10563

F18-39

10563

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

25205

Females

10787

F18-39

10787

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

25108

Females

10732

F18-39

10732

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23350

Females

9863

F18-39

9863

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23514

Females

9918

F18-39

9918

Passing Analysis

Category:
Athletes Passed
1185
Passed By
128
Net Change
+1057
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26328
5K → 10K14616+130#26328#26198
10K → 15K1409+131#26198#26067
15K → 20K1668+158#26067#25909
20K → Half252+23#25909#25886
Half → 25K1333+130#25886#25756
25K → 30K2393+236#25756#25520
30K → 20M785+73#25520#25447
20M → 21M872+85#25447#25362
21M → 35K239+14#25362#25348
35K → 23M3529+6#25348#25342
23M → 24M2325-2#25342#25344
24M → 40K1913+6#25344#25338
40K → 25.2M201+19#25338#25319
25.2M → Finish513+48#25319#25271
TOTALS1185128+1057
📊

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