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BOSTON MARATHON 2024

Caitriona Mcdonald

Bib: 21427 F IE

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 49%
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:26/mi
26:11
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:35/mi
52:52
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:53/mi
1:20:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:16/mi
1:49:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:59/mi
1:55:24
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:18/mi
2:17:58
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:48/mi
2:48:25
↑ 181↓ 1480.2%
138 ft elev
20M
9:26/mi
3:01:14
↑ 64↓ 500.2%
148 ft elev
21M
10:44/mi
3:11:58
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:03/mi
3:18:44
↑ 17↓ 861.7%
156 ft elev
23M
9:35/mi
3:30:44
↑ 23↓ 630.6%
116 ft elev
24M
9:41/mi
3:40:25
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:20/mi
3:48:24
↓ 200.3%
20 ft elev
25.2M
10:06/mi
3:51:53
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:31/mi
4:00:34
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:24
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:05:10
Pace9:33 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2926:118:2626:11
8:26
-
10K
6.21 mi11:49:1052:528:3026:41
8:35
+0:09
15K
9.32 mi12:16:471:20:298:3827:37
8:53
+0:18
20K
12.43 mi12:45:341:49:168:4828:47
9:16
+0:23
Half
13.11 mi12:51:421:55:248:486:08
8:59
-0:17
25K
15.53 mi13:14:162:17:588:5322:34
9:18
+0:19
30K
18.64 mi13:44:432:48:259:0230:27
9:48
+0:30
20M
20.00 mi13:57:323:01:149:0412:49
9:26
-0:22
21M
21.00 mi14:08:163:11:589:0810:44
10:44
+1:18
35K
21.75 mi14:15:023:18:449:086:46
9:03
-1:41
23M
23.00 mi14:27:023:30:449:1012:00
9:35
+0:32
24M
24.00 mi14:36:433:40:259:119:41
9:41
+0:06
40K
24.85 mi14:44:423:48:249:117:59
9:20
-0:21
25.2M
25.20 mi14:48:113:51:539:123:29
10:06
+0:46
Finish
26.22 mi14:56:524:00:349:118:41
8:31
-1:35

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

8:26 /mi

Average Pace

9:11 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:18

40% of race

Time at Steady Pace

1:30:55

38% of race

Time at Slower Pace

54:21

23% of race

Average Pace: 9:10 /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 mi11:22:2926:118:2626:11
8:26
#17376
10K
6.21 mi11:49:1052:528:3026:41
8:35
#17563
15K
9.32 mi12:16:471:20:298:3827:37
8:53
#17851
20K
12.43 mi12:45:341:49:168:4828:47
9:16
#17998
Half
13.11 mi12:51:421:55:248:486:08
8:59
#18002
25K
15.53 mi13:14:162:17:588:5322:34
9:18
#17752
30K
18.64 mi13:44:432:48:259:0230:27
9:48
#17514
20M
20.00 mi13:57:323:01:149:0412:49
9:26
#17258
21M
21.00 mi14:08:163:11:589:0810:44
10:44
#17179
35K
21.75 mi14:15:023:18:449:086:46
9:03
#17026
23M
23.00 mi14:27:023:30:449:1012:00
9:35
#16855
24M
24.00 mi14:36:433:40:259:119:41
9:41
#16769
40K
24.85 mi14:44:423:48:249:117:59
9:20
#16593
25.2M
25.20 mi14:48:113:51:539:123:29
10:06
#16493
Finish
26.22 mi14:56:524:00:349:118:41
8:31
#16323
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi173766389638918387(Top 72%)6911(Top 63%)6911(Top 394%)
10K6.21 mi3.10 mi17563-1876483-946483-9417789(Top 70%)6607(Top 60%)6607(Top 377%)
15K9.32 mi3.11 mi17851-2886647-1646647-16418387(Top 72%)6911(Top 63%)6911(Top 394%)
20K12.43 mi3.11 mi17998-1476742-956742-9518437(Top 72%)6953(Top 64%)6953(Top 397%)
Half13.11 mi0.68 mi18002-46742674218222(Top 71%)6892(Top 63%)6892(Top 393%)
25K15.53 mi2.42 mi17752+2506631+1116631+11116838(Top 66%)6175(Top 57%)6175(Top 352%)
30K18.64 mi3.11 mi17514+2386539+926539+9216645(Top 65%)6323(Top 58%)6323(Top 361%)
20M20.00 mi1.36 mi17258+2566436+1036436+10314233(Top 56%)5259(Top 48%)5259(Top 300%)
21M21.00 mi1.00 mi17179+796423+136423+1315594(Top 61%)6113(Top 56%)6113(Top 349%)
35K21.75 mi0.75 mi17026+1536360+636360+6313565(Top 53%)5111(Top 47%)5111(Top 292%)
23M23.00 mi1.25 mi16855+1716291+696291+6913881(Top 54%)5355(Top 49%)5355(Top 305%)
24M24.00 mi1.00 mi16769+866270+216270+2115220(Top 60%)6062(Top 55%)6062(Top 346%)
40K24.85 mi0.85 mi16593+1766202+686202+6812461(Top 49%)4768(Top 44%)4768(Top 272%)
25.2M25.20 mi0.35 mi16493+1006160+426160+4211423(Top 45%)4323(Top 40%)4323(Top 247%)
Finish26.22 mi1.02 mi16323+1706100+606100+6011663(Top 46%)4314(Top 39%)4314(Top 246%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

18387

Females

6911

F45-49

6911

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

17789

Females

6607

F45-49

6607

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

18387

Females

6911

F45-49

6911

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

18437

Females

6953

F45-49

6953

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18222

Females

6892

F45-49

6892

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

16838

Females

6175

F45-49

6175

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

16645

Females

6323

F45-49

6323

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14233

Females

5259

F45-49

5259

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

15594

Females

6113

F45-49

6113

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

13565

Females

5111

F45-49

5111

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13881

Females

5355

F45-49

5355

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

15220

Females

6062

F45-49

6062

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12461

Females

4768

F45-49

4768

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11423

Females

4323

F45-49

4323

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

11663

Females

4314

F45-49

4314

Passing Analysis

Category:
Athletes Passed
2645
Passed By
1592
Net Change
+1053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17376
5K → 10K208395-187#17376#17563
10K → 15K152440-288#17563#17851
15K → 20K198345-147#17851#17998
20K → Half3842-4#17998#18002
Half → 25K32676+250#18002#17752
25K → 30K377139+238#17752#17514
30K → 20M27115+256#17514#17258
20M → 21M13354+79#17258#17179
21M → 35K16310+153#17179#17026
35K → 23M18817+171#17026#16855
23M → 24M12842+86#16855#16769
24M → 40K18610+176#16769#16593
40K → 25.2M1000+100#16593#16493
25.2M → Finish1777+170#16493#16323
TOTALS26451592+1053
📊

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