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BOSTON MARATHON 2024

Cara O'Shaughnessy

Bib: 18982•F

NY

Masters
Boston Marathon logo
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Age Group (F50-54)
#0 / 1187
Top 48%
Race Day Weather
55°/45°F
scattered clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
26:42
Rank: #18293
Start → 5K
26:42 | 8:36/mi
10K· 6.21 mi
53:04
Rank: #17765 (+528)
5K → 10K
26:22 | 8:29/mi
15K· 9.32 mi
1:19:26
Rank: #17245 (+520)
10K → 15K
26:22 | 8:29/mi
20K· 12.43 mi
1:46:33
Rank: #16854 (+391)
15K → 20K
27:07 | 8:44/mi
Half· 13.11 mi
1:52:32
Rank: #16858 (-4)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:14:58
Rank: #16772 (+86)
Half → 25K
22:26 | 9:15/mi
30K· 18.64 mi
2:44:55
Rank: #16632 (+140)
25K → 30K
29:57 | 9:38/mi
20M
2:59:08
Rank: #16796 (-164)
30K → 20M
14:13 | 10:28/mi
21M
3:10:05
Rank: #16785 (+11)
20M → 21M
10:57 | 10:57/mi
35K· 21.75 mi
3:16:52
Rank: #16659 (+126)
21M → 35K
6:47 | 9:04/mi
23M
3:31:18
Rank: #16954 (-295)
35K → 23M
14:26 | 11:32/mi
24M
3:40:50
Rank: #16840 (+114)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:49:54
Rank: #16842 (-2)
24M → 40K
9:04 | 10:36/mi
25.2M
3:53:19
Rank: #16728 (+114)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
4:03:09
Rank: #16718 (+10)
25.2M → Finish
9:50 | 9:39/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:52:32
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:10:37
Pace9:58 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4126:428:3626:42
8:36
-
10K
6.21 mi11:45:0353:048:3226:22
8:29
-0:07
15K
9.32 mi12:11:251:19:268:3126:22
8:29
0:00
20K
12.43 mi12:38:321:46:338:3427:07
8:44
+0:15
Half
13.11 mi12:44:311:52:328:355:59
8:46
+0:02
25K
15.53 mi13:06:572:14:588:4122:26
9:15
+0:29
30K
18.64 mi13:36:542:44:558:5129:57
9:38
+0:23
20M
20.00 mi13:51:072:59:088:5714:13
10:28
+0:50
21M
21.00 mi14:02:043:10:059:0310:57
10:57
+0:29
35K
21.75 mi14:08:513:16:529:036:47
9:04
-1:53
23M
23.00 mi14:23:173:31:189:1114:26
11:32
+2:28
24M
24.00 mi14:32:493:40:509:129:32
9:32
-2:00
40K
24.85 mi14:41:533:49:549:159:04
10:36
+1:04
25.2M
25.20 mi14:45:183:53:199:163:25
9:54
-0:42
Finish
26.22 mi14:55:084:03:099:179:50
9:39
-0:15

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:29 /mi

Average Pace

9:17 /mi

Slowest Pace

11:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:59:19

49% of race

Time at Steady Pace

1:15:10

31% of race

Time at Slower Pace

48:40

20% of race

Average Pace: 9:16 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:4126:428:3626:42
8:36
#18293
10K
6.21 mi11:45:0353:048:3226:22
8:29
#17765
15K
9.32 mi12:11:251:19:268:3126:22
8:29
#17245
20K
12.43 mi12:38:321:46:338:3427:07
8:44
#16854
Half
13.11 mi12:44:311:52:328:355:59
8:46
#16858
25K
15.53 mi13:06:572:14:588:4122:26
9:15
#16772
30K
18.64 mi13:36:542:44:558:5129:57
9:38
#16632
20M
20.00 mi13:51:072:59:088:5714:13
10:28
#16796
21M
21.00 mi14:02:043:10:059:0310:57
10:57
#16785
35K
21.75 mi14:08:513:16:529:036:47
9:04
#16659
23M
23.00 mi14:23:173:31:189:1114:26
11:32
#16954
24M
24.00 mi14:32:493:40:509:129:32
9:32
#16840
40K
24.85 mi14:41:533:49:549:159:04
10:36
#16842
25.2M
25.20 mi14:45:183:53:199:163:25
9:54
#16728
Finish
26.22 mi14:55:084:03:099:179:50
9:39
#16718
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi182936928692816337(Top 64%)5771(Top 53%)5771(Top 486%)
10K6.21 mi3.10 mi17765+5286593+3356593+33517198(Top 67%)6253(Top 57%)6253(Top 527%)
15K9.32 mi3.11 mi17245+5206292+3016292+30116337(Top 64%)5771(Top 53%)5771(Top 486%)
20K12.43 mi3.11 mi16854+3916083+2096083+20915995(Top 63%)5586(Top 51%)5586(Top 471%)
Half13.11 mi0.68 mi16858-46086-36086-317234(Top 67%)6357(Top 58%)6357(Top 536%)
25K15.53 mi2.42 mi16772+866060+266060+2616643(Top 65%)6068(Top 56%)6068(Top 511%)
30K18.64 mi3.11 mi16632+1406050+106050+1016009(Top 63%)5984(Top 55%)5984(Top 504%)
20M20.00 mi1.36 mi16796-1646176-1266176-12617892(Top 70%)7147(Top 65%)7147(Top 602%)
21M21.00 mi1.00 mi16785+116204-286204-2816209(Top 63%)6429(Top 59%)6429(Top 542%)
35K21.75 mi0.75 mi16659+1266147+576147+5713680(Top 54%)5173(Top 47%)5173(Top 436%)
23M23.00 mi1.25 mi16954-2956350-2036350-20319710(Top 77%)8253(Top 76%)8253(Top 695%)
24M24.00 mi1.00 mi16840+1146315+356315+3514630(Top 57%)5765(Top 53%)5765(Top 486%)
40K24.85 mi0.85 mi16842-26345-306345-3016994(Top 67%)7022(Top 64%)7022(Top 592%)
25.2M25.20 mi0.35 mi16728+1146290+556290+5510646(Top 42%)3955(Top 36%)3955(Top 333%)
Finish26.22 mi1.02 mi16718+106317-276317-2717151(Top 67%)7083(Top 65%)7083(Top 597%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16337

Females

5771

F50-54

5771

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17198

Females

6253

F50-54

6253

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16337

Females

5771

F50-54

5771

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

15995

Females

5586

F50-54

5586

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17234

Females

6357

F50-54

6357

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

16643

Females

6068

F50-54

6068

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16009

Females

5984

F50-54

5984

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

17892

Females

7147

F50-54

7147

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16209

Females

6429

F50-54

6429

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

13680

Females

5173

F50-54

5173

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

19710

Females

8253

F50-54

8253

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

14630

Females

5765

F50-54

5765

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

16994

Females

7022

F50-54

7022

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

10646

Females

3955

F50-54

3955

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17151

Females

7083

F50-54

7083

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3040
Passed By
1465
Net Change
+1575
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18293
5K → 10K60981+528#18293#17765
10K → 15K56848+520#17765#17245
15K → 20K46675+391#17245#16854
20K → Half3539-4#16854#16858
Half → 25K261175+86#16858#16772
25K → 30K303163+140#16772#16632
30K → 20M69233-164#16632#16796
20M → 21M119108+11#16796#16785
21M → 35K1337+126#16785#16659
35K → 23M41336-295#16659#16954
23M → 24M14026+114#16954#16840
24M → 40K9395-2#16840#16842
40K → 25.2M1162+114#16842#16728
25.2M → Finish8777+10#16728#16718
TOTALS30401465+1575
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing