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BOSTON MARATHON 2023

Cailin O'dwyer

Bib: 30725•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
32:36
Rank: #24694
Start → 5K
32:36 | 10:30/mi
10K· 6.21 mi
1:03:49
Rank: #24207 (+487)
5K → 10K
31:13 | 10:03/mi
15K· 9.32 mi
1:35:01
Rank: #23994 (+213)
10K → 15K
31:12 | 10:03/mi
20K· 12.43 mi
2:04:16
Rank: #23415 (+579)
15K → 20K
29:15 | 9:25/mi
Half· 13.11 mi
2:12:07
Rank: #23587 (-172)
20K → Half
7:51 | 11:30/mi
25K· 15.53 mi
2:36:49
Rank: #23413 (+174)
Half → 25K
24:42 | 10:11/mi
30K· 18.64 mi
3:08:25
Rank: #23067 (+346)
25K → 30K
31:36 | 10:10/mi
20M
3:21:32
Rank: #22793 (+274)
30K → 20M
13:07 | 9:39/mi
21M
3:32:50
Rank: #22732 (+61)
20M → 21M
11:18 | 11:18/mi
35K· 21.75 mi
3:39:51
Rank: #22633 (+99)
21M → 35K
7:01 | 9:23/mi
23M
3:52:45
Rank: #22518 (+115)
35K → 23M
12:54 | 10:18/mi
24M
4:02:45
Rank: #22455 (+63)
23M → 24M
10:00 | 10:00/mi
40K· 24.85 mi
4:11:57
Rank: #22441 (+14)
24M → 40K
9:12 | 10:46/mi
25.2M
4:16:01
Rank: #22423 (+18)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:25:56
Rank: #22386 (+37)
25.2M → Finish
9:55 | 9:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:07
Pace10:05 /mi
2nd Half
Distance13.11 mi
Time2:13:49
Pace10:12 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0032:3610:3032:36
10:30
-
10K
6.21 mi12:24:131:03:4910:1631:13
10:03
-0:27
15K
9.32 mi12:55:251:35:0110:1231:12
10:03
0:00
20K
12.43 mi13:24:402:04:1610:0029:15
9:25
-0:38
Half
13.11 mi13:32:312:12:0710:057:51
11:30
+2:05
25K
15.53 mi13:57:132:36:4910:0624:42
10:11
-1:19
30K
18.64 mi14:28:493:08:2510:0631:36
10:10
-0:01
20M
20.00 mi14:41:563:21:3210:0513:07
9:39
-0:31
21M
21.00 mi14:53:143:32:5010:0811:18
11:18
+1:39
35K
21.75 mi15:00:153:39:5110:077:01
9:23
-1:55
23M
23.00 mi15:13:093:52:4510:0712:54
10:18
+0:55
24M
24.00 mi15:23:094:02:4510:0710:00
10:00
-0:18
40K
24.85 mi15:32:214:11:5710:089:12
10:46
+0:46
25.2M
25.20 mi15:36:254:16:0110:104:04
11:48
+1:02
Finish
26.22 mi15:46:204:25:5610:099:55
9:44
-2:04

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

9:23 /mi

Average Pace

10:09 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:18

22% of race

Time at Steady Pace

2:54:13

66% of race

Time at Slower Pace

32:25

12% of race

Average Pace: 10:09 /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 mi11:53:0032:3610:3032:36
10:30
#24694
10K
6.21 mi12:24:131:03:4910:1631:13
10:03
#24207
15K
9.32 mi12:55:251:35:0110:1231:12
10:03
#23994
20K
12.43 mi13:24:402:04:1610:0029:15
9:25
#23415
Half
13.11 mi13:32:312:12:0710:057:51
11:30
#23587
25K
15.53 mi13:57:132:36:4910:0624:42
10:11
#23413
30K
18.64 mi14:28:493:08:2510:0631:36
10:10
#23067
20M
20.00 mi14:41:563:21:3210:0513:07
9:39
#22793
21M
21.00 mi14:53:143:32:5010:0811:18
11:18
#22732
35K
21.75 mi15:00:153:39:5110:077:01
9:23
#22633
23M
23.00 mi15:13:093:52:4510:0712:54
10:18
#22518
24M
24.00 mi15:23:094:02:4510:0710:00
10:00
#22455
40K
24.85 mi15:32:214:11:5710:089:12
10:46
#22441
25.2M
25.20 mi15:36:254:16:0110:104:04
11:48
#22423
Finish
26.22 mi15:46:204:25:5610:099:55
9:44
#22386
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24694102661026623579(Top 89%)9654(Top 85%)9654(Top 198%)
10K6.21 mi3.10 mi24207+4879998+2689998+26823793(Top 89%)9776(Top 86%)9776(Top 200%)
15K9.32 mi3.11 mi23994+2139886+1129886+11223579(Top 89%)9654(Top 85%)9654(Top 198%)
20K12.43 mi3.11 mi23415+5799562+3249562+32421293(Top 80%)8399(Top 74%)8399(Top 172%)
Half13.11 mi0.68 mi23587-1729655-939655-9325494(Top 96%)10783(Top 94%)10783(Top 221%)
25K15.53 mi2.42 mi23413+1749575+809575+8022585(Top 85%)9164(Top 80%)9164(Top 188%)
30K18.64 mi3.11 mi23067+3469421+1549421+15421474(Top 81%)8618(Top 75%)8618(Top 176%)
20M20.00 mi1.36 mi22793+2749284+1379284+13719425(Top 73%)7538(Top 66%)7538(Top 154%)
21M21.00 mi1.00 mi22732+619267+179267+1721492(Top 81%)8736(Top 76%)8736(Top 179%)
35K21.75 mi0.75 mi22633+999225+429225+4219497(Top 73%)7670(Top 67%)7670(Top 157%)
23M23.00 mi1.25 mi22518+1159166+599166+5920848(Top 78%)8437(Top 74%)8437(Top 173%)
24M24.00 mi1.00 mi22455+639136+309136+3020800(Top 78%)8437(Top 74%)8437(Top 173%)
40K24.85 mi0.85 mi22441+149140-49140-421866(Top 82%)9078(Top 79%)9078(Top 186%)
25.2M25.20 mi0.35 mi22423+189135+59135+522158(Top 83%)9217(Top 81%)9217(Top 189%)
Finish26.22 mi1.02 mi22386+379119+169119+1620933(Top 79%)8525(Top 75%)8525(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23579

Females

9654

F18-39

9654

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

23793

Females

9776

F18-39

9776

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23579

Females

9654

F18-39

9654

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21293

Females

8399

F18-39

8399

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25494

Females

10783

F18-39

10783

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22585

Females

9164

F18-39

9164

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21474

Females

8618

F18-39

8618

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19425

Females

7538

F18-39

7538

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21492

Females

8736

F18-39

8736

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

19497

Females

7670

F18-39

7670

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20848

Females

8437

F18-39

8437

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20800

Females

8437

F18-39

8437

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21866

Females

9078

F18-39

9078

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22158

Females

9217

F18-39

9217

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

20933

Females

8525

F18-39

8525

Passing Analysis

Category:
Athletes Passed
2678
Passed By
370
Net Change
+2308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24694
5K → 10K52639+487#24694#24207
10K → 15K25845+213#24207#23994
15K → 20K5801+579#23994#23415
20K → Half2174-172#23415#23587
Half → 25K19521+174#23587#23413
25K → 30K3526+346#23413#23067
30K → 20M2740+274#23067#22793
20M → 21M8423+61#22793#22732
21M → 35K1001+99#22732#22633
35K → 23M12813+115#22633#22518
23M → 24M685+63#22518#22455
24M → 40K3824+14#22455#22441
40K → 25.2M268+18#22441#22423
25.2M → Finish4710+37#22423#22386
TOTALS2678370+2308
📊

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