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BOSTON MARATHON 2024

Caitlin O'Callaghan

Bib: 30542•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F40-44)
#0 / 1613
Race Day Weather
55°/45°F
scattered 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
11:17/mi
35:02
↑ 97↓ 3451.5%
10K· 6.21 mi
11:14/mi
1:09:55
↑ 79↓ 1380.4%
15K· 9.32 mi
11:14/mi
1:44:49
↑ 67↓ 78
20K· 12.43 mi
11:57/mi
2:21:56
↑ 106↓ 860.1%
Half· 13.11 mi
12:16/mi
2:30:18
↑ 19↓ 370.5%
25K· 15.53 mi
12:12/mi
2:59:53
↑ 66↓ 880.2%
30K· 18.64 mi
12:32/mi
3:38:49
↑ 181↓ 1480.2%
20M
12:39/mi
3:56:01
↑ 64↓ 500.2%
21M
15:49/mi
4:11:50
↑ 106↓ 241.6%
35K· 21.75 mi
11:27/mi
4:20:24
↑ 17↓ 861.7%
23M
12:49/mi
4:36:27
↑ 23↓ 630.6%
24M
12:12/mi
4:48:39
↓ 821.3%
40K· 24.85 mi
13:41/mi
5:00:21
↓ 200.3%
25.2M
13:03/mi
5:04:51
↑ 13↓ 160.2%
Finish· 26.22 mi
10:51/mi
5:15:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:30:18
Pace11:28 /mi
2nd Half
Distance13.11 mi
Time2:45:36
Pace12:38 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4435:0211:1735:02
11:17
-
10K
6.21 mi12:25:371:09:5511:1534:53
11:14
-0:03
15K
9.32 mi13:00:311:44:4911:1534:54
11:14
0:00
20K
12.43 mi13:37:382:21:5611:2537:07
11:57
+0:43
Half
13.11 mi13:46:002:30:1811:288:22
12:16
+0:19
25K
15.53 mi14:15:352:59:5311:3529:35
12:12
-0:04
30K
18.64 mi14:54:313:38:4911:4438:56
12:32
+0:20
20M
20.00 mi15:11:433:56:0111:4817:12
12:39
+0:07
21M
21.00 mi15:27:324:11:5012:0015:49
15:49
+3:10
35K
21.75 mi15:36:064:20:2411:588:34
11:27
-4:22
23M
23.00 mi15:52:094:36:2712:0116:03
12:49
+1:22
24M
24.00 mi16:04:214:48:3912:0212:12
12:12
-0:37
40K
24.85 mi16:16:035:00:2112:0511:42
13:41
+1:29
25.2M
25.20 mi16:20:335:04:5112:064:30
13:03
-0:38
Finish
26.22 mi16:31:365:15:5412:0311:03
10:51
-2:12

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

10:51 /mi

Average Pace

12:03 /mi

Slowest Pace

15:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:26

39% of race

Time at Steady Pace

2:23:24

45% of race

Time at Slower Pace

48:04

15% of race

Average Pace: 12:03 /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 mi11:50:4435:0211:1735:02
11:17
#25080
10K
6.21 mi12:25:371:09:5511:1534:53
11:14
#24821
15K
9.32 mi13:00:311:44:4911:1534:54
11:14
#24558
20K
12.43 mi13:37:382:21:5611:2537:07
11:57
#24418
Half
13.11 mi13:46:002:30:1811:288:22
12:16
#24452
25K
15.53 mi14:15:352:59:5311:3529:35
12:12
#24278
30K
18.64 mi14:54:313:38:4911:4438:56
12:32
#24034
20M
20.00 mi15:11:433:56:0111:4817:12
12:39
#23943
21M
21.00 mi15:27:324:11:5012:0015:49
15:49
#23966
35K
21.75 mi15:36:064:20:2411:588:34
11:27
#23884
23M
23.00 mi15:52:094:36:2712:0116:03
12:49
#23819
24M
24.00 mi16:04:214:48:3912:0212:12
12:12
#23757
40K
24.85 mi16:16:035:00:2112:0511:42
13:41
#23752
25.2M
25.20 mi16:20:335:04:5112:064:30
13:03
#23724
Finish
26.22 mi16:31:365:15:5412:0311:03
10:51
#23646
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25080106201062023987(Top 94%)9961(Top 91%)9961(Top 618%)
10K6.21 mi3.10 mi24821+25910455+16510455+16524525(Top 96%)10278(Top 94%)10278(Top 637%)
15K9.32 mi3.11 mi24558+26310284+17110284+17123987(Top 94%)9961(Top 91%)9961(Top 618%)
20K12.43 mi3.11 mi24418+14010216+6810216+6823937(Top 94%)9972(Top 91%)9972(Top 618%)
Half13.11 mi0.68 mi24452-3410242-2610242-2624775(Top 97%)10486(Top 96%)10486(Top 650%)
25K15.53 mi2.42 mi24278+17410145+9710145+9723415(Top 92%)9765(Top 89%)9765(Top 605%)
30K18.64 mi3.11 mi24034+24410036+10910036+10922724(Top 89%)9513(Top 87%)9513(Top 590%)
20M20.00 mi1.36 mi23943+9110018+1810018+1822420(Top 88%)9473(Top 87%)9473(Top 587%)
21M21.00 mi1.00 mi23966-2310033-1510033-1524349(Top 95%)10430(Top 95%)10430(Top 647%)
35K21.75 mi0.75 mi23884+8210001+3210001+3220785(Top 81%)8721(Top 80%)8721(Top 541%)
23M23.00 mi1.25 mi23819+659974+279974+2722256(Top 87%)9490(Top 87%)9490(Top 588%)
24M24.00 mi1.00 mi23757+629954+209954+2021852(Top 86%)9371(Top 86%)9371(Top 581%)
40K24.85 mi0.85 mi23752+59955-19955-123257(Top 91%)10052(Top 92%)10052(Top 623%)
25.2M25.20 mi0.35 mi23724+289944+119944+1119847(Top 78%)8454(Top 77%)8454(Top 524%)
Finish26.22 mi1.02 mi23646+789914+309914+3020976(Top 82%)8966(Top 82%)8966(Top 556%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

23987

Females

9961

F40-44

9961

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

24525

Females

10278

F40-44

10278

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

23987

Females

9961

F40-44

9961

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

23937

Females

9972

F40-44

9972

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

24775

Females

10486

F40-44

10486

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

23415

Females

9765

F40-44

9765

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

22724

Females

9513

F40-44

9513

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

22420

Females

9473

F40-44

9473

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

24349

Females

10430

F40-44

10430

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

20785

Females

8721

F40-44

8721

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

22256

Females

9490

F40-44

9490

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

21852

Females

9371

F40-44

9371

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

23257

Females

10052

F40-44

10052

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

19847

Females

8454

F40-44

8454

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

20976

Females

8966

F40-44

8966

Passing Analysis

Category:
Athletes Passed
1669
Passed By
235
Net Change
+1434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25080
5K → 10K27819+259#25080#24821
10K → 15K2718+263#24821#24558
15K → 20K17030+140#24558#24418
20K → Half1145-34#24418#24452
Half → 25K18713+174#24452#24278
25K → 30K2506+244#24278#24034
30K → 20M1009+91#24034#23943
20M → 21M3356-23#23943#23966
21M → 35K842+82#23966#23884
35K → 23M7914+65#23884#23819
23M → 24M697+62#23819#23757
24M → 40K2520+5#23757#23752
40K → 25.2M280+28#23752#23724
25.2M → Finish846+78#23724#23646
TOTALS1669235+1434
📊

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