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BOSTON MARATHON 2023

Sarah Kelly

Bib: 16792•F

MO

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
25:12
Rank: #14810
Start → 5K
25:12 | 8:07/mi
10K· 6.21 mi
49:58
Rank: #14692 (+118)
5K → 10K
24:46 | 7:58/mi
15K· 9.32 mi
1:14:57
Rank: #14674 (+18)
10K → 15K
24:59 | 8:02/mi
20K· 12.43 mi
1:40:37
Rank: #14840 (-166)
15K → 20K
25:40 | 8:16/mi
Half· 13.11 mi
1:46:17
Rank: #14934 (-94)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:07:05
Rank: #15220 (-286)
Half → 25K
20:48 | 8:35/mi
30K· 18.64 mi
2:35:28
Rank: #15754 (-534)
25K → 30K
28:23 | 9:08/mi
20M
2:48:28
Rank: #16061 (-307)
30K → 20M
13:00 | 9:34/mi
21M
2:58:36
Rank: #16229 (-168)
20M → 21M
10:08 | 10:08/mi
35K· 21.75 mi
3:05:34
Rank: #16343 (-114)
21M → 35K
6:58 | 9:19/mi
23M
3:18:15
Rank: #16696 (-353)
35K → 23M
12:41 | 10:08/mi
24M
3:27:59
Rank: #16910 (-214)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:36:28
Rank: #17053 (-143)
24M → 40K
8:29 | 9:55/mi
25.2M
3:40:07
Rank: #17113 (-60)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:49:17
Rank: #17184 (-71)
25.2M → Finish
9:10 | 9:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:17
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:03:00
Pace9:23 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3325:128:0725:12
8:07
-
10K
6.21 mi11:40:1949:588:0224:46
7:58
-0:09
15K
9.32 mi12:05:181:14:578:0224:59
8:02
+0:04
20K
12.43 mi12:30:581:40:378:0625:40
8:16
+0:14
Half
13.11 mi12:36:381:46:178:065:40
8:18
+0:02
25K
15.53 mi12:57:262:07:058:1120:48
8:35
+0:17
30K
18.64 mi13:25:492:35:288:2028:23
9:08
+0:33
20M
20.00 mi13:38:492:48:288:2513:00
9:34
+0:26
21M
21.00 mi13:48:572:58:368:3010:08
10:08
+0:34
35K
21.75 mi13:55:553:05:348:326:58
9:19
-0:49
23M
23.00 mi14:08:363:18:158:3712:41
10:08
+0:49
24M
24.00 mi14:18:203:27:598:409:44
9:44
-0:24
40K
24.85 mi14:26:493:36:288:438:29
9:55
+0:11
25.2M
25.20 mi14:30:283:40:078:443:39
10:35
+0:40
Finish
26.22 mi14:39:383:49:178:459:10
9:00
-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

7:58 /mi

Average Pace

8:45 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:05

55% of race

Time at Steady Pace

44:31

19% of race

Time at Slower Pace

57:41

25% of race

Average Pace: 8:45 /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 mi11:15:3325:128:0725:12
8:07
#14810
10K
6.21 mi11:40:1949:588:0224:46
7:58
#14692
15K
9.32 mi12:05:181:14:578:0224:59
8:02
#14674
20K
12.43 mi12:30:581:40:378:0625:40
8:16
#14840
Half
13.11 mi12:36:381:46:178:065:40
8:18
#14934
25K
15.53 mi12:57:262:07:058:1120:48
8:35
#15220
30K
18.64 mi13:25:492:35:288:2028:23
9:08
#15754
20M
20.00 mi13:38:492:48:288:2513:00
9:34
#16061
21M
21.00 mi13:48:572:58:368:3010:08
10:08
#16229
35K
21.75 mi13:55:553:05:348:326:58
9:19
#16343
23M
23.00 mi14:08:363:18:158:3712:41
10:08
#16696
24M
24.00 mi14:18:203:27:598:409:44
9:44
#16910
40K
24.85 mi14:26:493:36:288:438:29
9:55
#17053
25.2M
25.20 mi14:30:283:40:078:443:39
10:35
#17113
Finish
26.22 mi14:39:383:49:178:459:10
9:00
#17184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148104524452414750(Top 55%)4539(Top 40%)4539(Top 93%)
10K6.21 mi3.10 mi14692+1184463+614463+6114617(Top 55%)4433(Top 39%)4433(Top 91%)
15K9.32 mi3.11 mi14674+184459+44459+414750(Top 55%)4539(Top 40%)4539(Top 93%)
20K12.43 mi3.11 mi14840-1664580-1214580-12115375(Top 58%)4953(Top 43%)4953(Top 101%)
Half13.11 mi0.68 mi14934-944643-634643-6316578(Top 62%)5661(Top 50%)5661(Top 116%)
25K15.53 mi2.42 mi15220-2864853-2104853-21016712(Top 63%)5846(Top 51%)5846(Top 120%)
30K18.64 mi3.11 mi15754-5345229-3765229-37617862(Top 67%)6563(Top 57%)6563(Top 134%)
20M20.00 mi1.36 mi16061-3075432-2035432-20319108(Top 72%)7349(Top 64%)7349(Top 150%)
21M21.00 mi1.00 mi16229-1685556-1245556-12418503(Top 70%)7054(Top 62%)7054(Top 144%)
35K21.75 mi0.75 mi16343-1145627-715627-7119217(Top 72%)7500(Top 66%)7500(Top 154%)
23M23.00 mi1.25 mi16696-3535845-2185845-21820380(Top 77%)8160(Top 71%)8160(Top 167%)
24M24.00 mi1.00 mi16910-2145987-1425987-14220012(Top 75%)7977(Top 70%)7977(Top 163%)
40K24.85 mi0.85 mi17053-1436090-1036090-10319756(Top 74%)7920(Top 69%)7920(Top 162%)
25.2M25.20 mi0.35 mi17113-606128-386128-3819365(Top 73%)7699(Top 67%)7699(Top 158%)
Finish26.22 mi1.02 mi17184-716173-456173-4517969(Top 67%)6895(Top 60%)6895(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14750

Females

4539

F18-39

4539

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14617

Females

4433

F18-39

4433

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14750

Females

4539

F18-39

4539

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15375

Females

4953

F18-39

4953

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16578

Females

5661

F18-39

5661

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16712

Females

5846

F18-39

5846

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17862

Females

6563

F18-39

6563

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19108

Females

7349

F18-39

7349

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18503

Females

7054

F18-39

7054

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19217

Females

7500

F18-39

7500

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20380

Females

8160

F18-39

8160

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

20012

Females

7977

F18-39

7977

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19756

Females

7920

F18-39

7920

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19365

Females

7699

F18-39

7699

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17969

Females

6895

F18-39

6895

Passing Analysis

Category:
Athletes Passed
1028
Passed By
3402
Net Change
-2374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14810
5K → 10K350232+118#14810#14692
10K → 15K203185+18#14692#14674
15K → 20K137303-166#14674#14840
20K → Half11105-94#14840#14934
Half → 25K66352-286#14934#15220
25K → 30K54588-534#15220#15754
30K → 20M29336-307#15754#16061
20M → 21M42210-168#16061#16229
21M → 35K23137-114#16229#16343
35K → 23M19372-353#16343#16696
23M → 24M17231-214#16696#16910
24M → 40K25168-143#16910#17053
40K → 25.2M969-60#17053#17113
25.2M → Finish43114-71#17113#17184
TOTALS10283402-2374
📊

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