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BOSTON MARATHON 2023

Caroline Dunn

Bib: 17387•F

OH

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0:00
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
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
26:27
Rank: #17650
Start → 5K
26:27 | 8:31/mi
10K· 6.21 mi
52:42
Rank: #17794 (-144)
5K → 10K
26:15 | 8:27/mi
15K· 9.32 mi
1:18:58
Rank: #17671 (+123)
10K → 15K
26:16 | 8:27/mi
20K· 12.43 mi
1:45:30
Rank: #17483 (+188)
15K → 20K
26:32 | 8:32/mi
Half· 13.11 mi
1:51:17
Rank: #17486 (-3)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:12:05
Rank: #17334 (+152)
Half → 25K
20:48 | 8:35/mi
30K· 18.64 mi
2:39:03
Rank: #16961 (+373)
25K → 30K
26:58 | 8:41/mi
20M
2:50:53
Rank: #16798 (+163)
30K → 20M
11:50 | 8:42/mi
21M
3:00:00
Rank: #16625 (+173)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
3:06:19
Rank: #16568 (+57)
21M → 35K
6:19 | 8:27/mi
23M
3:17:10
Rank: #16404 (+164)
35K → 23M
10:51 | 8:40/mi
24M
3:25:34
Rank: #16283 (+121)
23M → 24M
8:24 | 8:24/mi
40K· 24.85 mi
3:32:54
Rank: #16168 (+115)
24M → 40K
7:20 | 8:35/mi
25.2M
3:36:05
Rank: #16140 (+28)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:44:54
Rank: #16155 (-15)
25.2M → Finish
8:49 | 8:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:17
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:53:37
Pace8:40 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1426:278:3126:27
8:31
-
10K
6.21 mi11:44:2952:428:2926:15
8:27
-0:04
15K
9.32 mi12:10:451:18:588:2826:16
8:27
0:00
20K
12.43 mi12:37:171:45:308:2926:32
8:32
+0:05
Half
13.11 mi12:43:041:51:178:295:47
8:29
-0:03
25K
15.53 mi13:03:522:12:058:3020:48
8:35
+0:06
30K
18.64 mi13:30:502:39:038:3226:58
8:41
+0:06
20M
20.00 mi13:42:402:50:538:3311:50
8:42
+0:01
21M
21.00 mi13:51:473:00:008:349:07
9:07
+0:25
35K
21.75 mi13:58:063:06:198:346:19
8:27
-0:40
23M
23.00 mi14:08:573:17:108:3410:51
8:40
+0:13
24M
24.00 mi14:17:213:25:348:348:24
8:24
-0:16
40K
24.85 mi14:24:413:32:548:347:20
8:35
+0:11
25.2M
25.20 mi14:27:523:36:058:343:11
9:14
+0:39
Finish
26.22 mi14:36:413:44:548:358:49
8:39
-0:35

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

8:24 /mi

Average Pace

8:35 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:36

95% of race

Time at Steady Pace

12:18

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:35 /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 mi11:18:1426:278:3126:27
8:31
#17650
10K
6.21 mi11:44:2952:428:2926:15
8:27
#17794
15K
9.32 mi12:10:451:18:588:2826:16
8:27
#17671
20K
12.43 mi12:37:171:45:308:2926:32
8:32
#17483
Half
13.11 mi12:43:041:51:178:295:47
8:29
#17486
25K
15.53 mi13:03:522:12:058:3020:48
8:35
#17334
30K
18.64 mi13:30:502:39:038:3226:58
8:41
#16961
20M
20.00 mi13:42:402:50:538:3311:50
8:42
#16798
21M
21.00 mi13:51:473:00:008:349:07
9:07
#16625
35K
21.75 mi13:58:063:06:198:346:19
8:27
#16568
23M
23.00 mi14:08:573:17:108:3410:51
8:40
#16404
24M
24.00 mi14:17:213:25:348:348:24
8:24
#16283
40K
24.85 mi14:24:413:32:548:347:20
8:35
#16168
25.2M
25.20 mi14:27:523:36:058:343:11
9:14
#16140
Finish
26.22 mi14:36:413:44:548:358:49
8:39
#16155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi176506342634217502(Top 66%)6212(Top 54%)6212(Top 127%)
10K6.21 mi3.10 mi17794-1446398-566398-5617927(Top 67%)6435(Top 56%)6435(Top 132%)
15K9.32 mi3.11 mi17671+1236318+806318+8017502(Top 66%)6212(Top 54%)6212(Top 127%)
20K12.43 mi3.11 mi17483+1886205+1136205+11317120(Top 64%)5999(Top 53%)5999(Top 123%)
Half13.11 mi0.68 mi17486-36216-116216-1117599(Top 66%)6236(Top 55%)6236(Top 128%)
25K15.53 mi2.42 mi17334+1526143+736143+7316697(Top 63%)5831(Top 51%)5831(Top 119%)
30K18.64 mi3.11 mi16961+3735938+2055938+20515411(Top 58%)5177(Top 45%)5177(Top 106%)
20M20.00 mi1.36 mi16798+1635862+765862+7614934(Top 56%)4961(Top 43%)4961(Top 102%)
21M21.00 mi1.00 mi16625+1735776+865776+8614084(Top 53%)4531(Top 40%)4531(Top 93%)
35K21.75 mi0.75 mi16568+575754+225754+2215019(Top 56%)5124(Top 45%)5124(Top 105%)
23M23.00 mi1.25 mi16404+1645672+825672+8214204(Top 53%)4734(Top 41%)4734(Top 97%)
24M24.00 mi1.00 mi16283+1215623+495623+4913912(Top 52%)4627(Top 41%)4627(Top 95%)
40K24.85 mi0.85 mi16168+1155571+525571+5213856(Top 52%)4669(Top 41%)4669(Top 96%)
25.2M25.20 mi0.35 mi16140+285556+155556+1513902(Top 52%)4713(Top 41%)4713(Top 96%)
Finish26.22 mi1.02 mi16155-155584-285584-2816276(Top 61%)5983(Top 52%)5983(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17502

Females

6212

F18-39

6212

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17927

Females

6435

F18-39

6435

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17502

Females

6212

F18-39

6212

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17120

Females

5999

F18-39

5999

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17599

Females

6236

F18-39

6236

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16697

Females

5831

F18-39

5831

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15411

Females

5177

F18-39

5177

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14934

Females

4961

F18-39

4961

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14084

Females

4531

F18-39

4531

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

15019

Females

5124

F18-39

5124

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14204

Females

4734

F18-39

4734

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13912

Females

4627

F18-39

4627

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13856

Females

4669

F18-39

4669

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13902

Females

4713

F18-39

4713

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16276

Females

5983

F18-39

5983

Passing Analysis

Category:
Athletes Passed
2386
Passed By
891
Net Change
+1495
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17650
5K → 10K245389-144#17650#17794
10K → 15K256133+123#17794#17671
15K → 20K27183+188#17671#17483
20K → Half3235-3#17483#17486
Half → 25K20149+152#17486#17334
25K → 30K39926+373#17334#16961
30K → 20M17411+163#16961#16798
20M → 21M18613+173#16798#16625
21M → 35K7821+57#16625#16568
35K → 23M17713+164#16568#16404
23M → 24M13716+121#16404#16283
24M → 40K13015+115#16283#16168
40K → 25.2M4113+28#16168#16140
25.2M → Finish5974-15#16140#16155
TOTALS2386891+1495
📊

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