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BOSTON MARATHON 2023

Caroline Donelan

Bib: 16634•F

OR

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0:00
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:05
Rank: #11940
Start → 5K
24:05 | 7:45/mi
10K· 6.21 mi
47:39
Rank: #11511 (+429)
5K → 10K
23:34 | 7:35/mi
15K· 9.32 mi
1:11:12
Rank: #11286 (+225)
10K → 15K
23:33 | 7:35/mi
20K· 12.43 mi
1:34:59
Rank: #11058 (+228)
15K → 20K
23:47 | 7:39/mi
Half· 13.11 mi
1:40:09
Rank: #11039 (+19)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:59:02
Rank: #11010 (+29)
Half → 25K
18:53 | 7:47/mi
30K· 18.64 mi
2:24:00
Rank: #10965 (+45)
25K → 30K
24:58 | 8:02/mi
20M
2:34:57
Rank: #10914 (+51)
30K → 20M
10:57 | 8:03/mi
21M
2:43:39
Rank: #10951 (-37)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:49:35
Rank: #10953 (-2)
21M → 35K
5:56 | 7:56/mi
23M
2:59:42
Rank: #10903 (+50)
35K → 23M
10:07 | 8:05/mi
24M
3:07:36
Rank: #10872 (+31)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:14:37
Rank: #10875 (-3)
24M → 40K
7:01 | 8:12/mi
25.2M
3:17:44
Rank: #10909 (-34)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:25:45
Rank: #10900 (+9)
25.2M → Finish
8:01 | 7:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:09
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:45:36
Pace8:03 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2324:057:4524:05
7:45
-
10K
6.21 mi11:37:5747:397:4023:34
7:35
-0:10
15K
9.32 mi12:01:301:11:127:3823:33
7:35
0:00
20K
12.43 mi12:25:171:34:597:3923:47
7:39
+0:04
Half
13.11 mi12:30:271:40:097:385:10
7:34
-0:05
25K
15.53 mi12:49:201:59:027:4018:53
7:47
+0:13
30K
18.64 mi13:14:182:24:007:4324:58
8:02
+0:15
20M
20.00 mi13:25:152:34:577:4510:57
8:03
+0:01
21M
21.00 mi13:33:572:43:397:488:42
8:42
+0:39
35K
21.75 mi13:39:532:49:357:485:56
7:56
-0:46
23M
23.00 mi13:50:002:59:427:4910:07
8:05
+0:09
24M
24.00 mi13:57:543:07:367:497:54
7:54
-0:11
40K
24.85 mi14:04:553:14:377:507:01
8:12
+0:18
25.2M
25.20 mi14:08:023:17:447:513:07
9:02
+0:50
Finish
26.22 mi14:16:033:25:457:518:01
7:52
-1:10

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

7:34 /mi

Average Pace

7:51 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:56

94% of race

Time at Steady Pace

8:42

4% of race

Time at Slower Pace

3:07

2% of race

Average Pace: 7:51 /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 mi11:14:2324:057:4524:05
7:45
#11940
10K
6.21 mi11:37:5747:397:4023:34
7:35
#11511
15K
9.32 mi12:01:301:11:127:3823:33
7:35
#11286
20K
12.43 mi12:25:171:34:597:3923:47
7:39
#11058
Half
13.11 mi12:30:271:40:097:385:10
7:34
#11039
25K
15.53 mi12:49:201:59:027:4018:53
7:47
#11010
30K
18.64 mi13:14:182:24:007:4324:58
8:02
#10965
20M
20.00 mi13:25:152:34:577:4510:57
8:03
#10914
21M
21.00 mi13:33:572:43:397:488:42
8:42
#10951
35K
21.75 mi13:39:532:49:357:485:56
7:56
#10953
23M
23.00 mi13:50:002:59:427:4910:07
8:05
#10903
24M
24.00 mi13:57:543:07:367:497:54
7:54
#10872
40K
24.85 mi14:04:553:14:377:507:01
8:12
#10875
25.2M
25.20 mi14:08:023:17:447:513:07
9:02
#10909
Finish
26.22 mi14:16:033:25:457:518:01
7:52
#10900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119402833283310849(Top 41%)2257(Top 20%)2257(Top 46%)
10K6.21 mi3.10 mi11511+4292609+2242609+22411197(Top 42%)2429(Top 21%)2429(Top 50%)
15K9.32 mi3.11 mi11286+2252484+1252484+12510849(Top 41%)2257(Top 20%)2257(Top 46%)
20K12.43 mi3.11 mi11058+2282357+1272357+12710573(Top 40%)2184(Top 19%)2184(Top 45%)
Half13.11 mi0.68 mi11039+192350+72350+710881(Top 41%)2310(Top 20%)2310(Top 47%)
25K15.53 mi2.42 mi11010+292363-132363-1311016(Top 41%)2493(Top 22%)2493(Top 51%)
30K18.64 mi3.11 mi10965+452385-222385-2211196(Top 42%)2736(Top 24%)2736(Top 56%)
20M20.00 mi1.36 mi10914+512390-52390-510725(Top 40%)2593(Top 23%)2593(Top 53%)
21M21.00 mi1.00 mi10951-372438-482438-4811677(Top 44%)3228(Top 28%)3228(Top 66%)
35K21.75 mi0.75 mi10953-22454-162454-1611627(Top 44%)3206(Top 28%)3206(Top 66%)
23M23.00 mi1.25 mi10903+502451+32451+310330(Top 39%)2674(Top 23%)2674(Top 55%)
24M24.00 mi1.00 mi10872+312463-122463-1210541(Top 40%)2848(Top 25%)2848(Top 58%)
40K24.85 mi0.85 mi10875-32491-282491-2811416(Top 43%)3364(Top 29%)3364(Top 69%)
25.2M25.20 mi0.35 mi10909-342521-302521-3012754(Top 48%)4087(Top 36%)4087(Top 84%)
Finish26.22 mi1.02 mi10900+92543-222543-2211173(Top 42%)3279(Top 29%)3279(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10849

Females

2257

F18-39

2257

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11197

Females

2429

F18-39

2429

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10849

Females

2257

F18-39

2257

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10573

Females

2184

F18-39

2184

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

10881

Females

2310

F18-39

2310

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11016

Females

2493

F18-39

2493

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11196

Females

2736

F18-39

2736

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10725

Females

2593

F18-39

2593

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11677

Females

3228

F18-39

3228

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11627

Females

3206

F18-39

3206

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10330

Females

2674

F18-39

2674

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10541

Females

2848

F18-39

2848

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11416

Females

3364

F18-39

3364

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12754

Females

4087

F18-39

4087

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11173

Females

3279

F18-39

3279

Passing Analysis

Category:
Athletes Passed
2103*
Passed By
1063
Net Change
+1040
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11940
5K → 10K569140+429#11940#11511
10K → 15K31388+225#11511#11286
15K → 20K28355+228#11286#11058
20K → Half3718+19#11058#11039
Half → 25K133104+29#11039#11010
25K → 30K192147+45#11010#10965
30K → 20M115*64+51#10965#10914
20M → 21M6198-37#10914#10951
21M → 35K4951-2#10951#10953
35K → 23M10959+50#10953#10903
23M → 24M8453+31#10903#10872
24M → 40K6568-3#10872#10875
40K → 25.2M2458-34#10875#10909
25.2M → Finish6960+9#10909#10900
TOTALS2103*1063+1040

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing