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BOSTON MARATHON 2023

Katelyn Fairhurst

Bib: 26616•F

MA

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
29:49
Rank: #22371
Start → 5K
29:49 | 9:36/mi
10K· 6.21 mi
1:04:13
Rank: #24344 (-1973)
5K → 10K
34:24 | 11:04/mi
15K· 9.32 mi
1:36:52
Rank: #24418 (-74)
10K → 15K
32:39 | 10:31/mi
20K· 12.43 mi
2:11:35
Rank: #24567 (-149)
15K → 20K
34:43 | 11:10/mi
Half· 13.11 mi
2:19:15
Rank: #24629 (-62)
20K → Half
7:40 | 11:14/mi
25K· 15.53 mi
2:47:21
Rank: #24670 (-41)
Half → 25K
28:06 | 11:35/mi
30K· 18.64 mi
3:24:47
Rank: #24645 (+25)
25K → 30K
37:26 | 12:03/mi
20M
3:41:36
Rank: #24659 (-14)
30K → 20M
16:49 | 12:22/mi
21M
3:54:24
Rank: #24635 (+24)
20M → 21M
12:48 | 12:48/mi
35K· 21.75 mi
4:02:43
Rank: #24593 (+42)
21M → 35K
8:19 | 11:07/mi
23M
4:17:23
Rank: #24535 (+58)
35K → 23M
14:40 | 11:43/mi
24M
4:27:52
Rank: #24443 (+92)
23M → 24M
10:29 | 10:29/mi
40K· 24.85 mi
4:37:05
Rank: #24371 (+72)
24M → 40K
9:13 | 10:47/mi
25.2M
4:41:07
Rank: #24330 (+41)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
4:51:52
Rank: #24304 (+26)
25.2M → Finish
10:45 | 10:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:15
Pace10:37 /mi
2nd Half
Distance13.11 mi
Time2:32:37
Pace11:39 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:1629:499:3629:49
9:36
-
10K
6.21 mi12:20:401:04:1310:2034:24
11:04
+1:28
15K
9.32 mi12:53:191:36:5210:2432:39
10:31
-0:33
20K
12.43 mi13:28:022:11:3510:3534:43
11:10
+0:39
Half
13.11 mi13:35:422:19:1510:377:40
11:14
+0:04
25K
15.53 mi14:03:482:47:2110:4628:06
11:35
+0:21
30K
18.64 mi14:41:143:24:4710:5937:26
12:03
+0:28
20M
20.00 mi14:58:033:41:3611:0516:49
12:22
+0:19
21M
21.00 mi15:10:513:54:2411:1012:48
12:48
+0:26
35K
21.75 mi15:19:104:02:4311:108:19
11:07
-1:41
23M
23.00 mi15:33:504:17:2311:1114:40
11:43
+0:36
24M
24.00 mi15:44:194:27:5211:1010:29
10:29
-1:14
40K
24.85 mi15:53:324:37:0511:099:13
10:47
+0:18
25.2M
25.20 mi15:57:344:41:0711:094:02
11:42
+0:55
Finish
26.22 mi16:08:194:51:5211:0810:45
10:33
-1:09

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

9:36 /mi

Average Pace

11:08 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:42

29% of race

Time at Steady Pace

1:34:19

32% of race

Time at Slower Pace

1:53:51

39% of race

Average Pace: 11:08 /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 mi11:46:1629:499:3629:49
9:36
#22371
10K
6.21 mi12:20:401:04:1310:2034:24
11:04
#24344
15K
9.32 mi12:53:191:36:5210:2432:39
10:31
#24418
20K
12.43 mi13:28:022:11:3510:3534:43
11:10
#24567
Half
13.11 mi13:35:422:19:1510:377:40
11:14
#24629
25K
15.53 mi14:03:482:47:2110:4628:06
11:35
#24670
30K
18.64 mi14:41:143:24:4710:5937:26
12:03
#24645
20M
20.00 mi14:58:033:41:3611:0516:49
12:22
#24659
21M
21.00 mi15:10:513:54:2411:1012:48
12:48
#24635
35K
21.75 mi15:19:104:02:4311:108:19
11:07
#24593
23M
23.00 mi15:33:504:17:2311:1114:40
11:43
#24535
24M
24.00 mi15:44:194:27:5211:1010:29
10:29
#24443
40K
24.85 mi15:53:324:37:0511:099:13
10:47
#24371
25.2M
25.20 mi15:57:344:41:0711:094:02
11:42
#24330
Finish
26.22 mi16:08:194:51:5211:0810:45
10:33
#24304
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi223719059905924478(Top 92%)10171(Top 89%)10171(Top 208%)
10K6.21 mi3.10 mi24344-197310074-101510074-101525542(Top 96%)10763(Top 94%)10763(Top 220%)
15K9.32 mi3.11 mi24418-7410116-4210116-4224478(Top 92%)10171(Top 89%)10171(Top 208%)
20K12.43 mi3.11 mi24567-14910214-9810214-9824851(Top 93%)10396(Top 91%)10396(Top 213%)
Half13.11 mi0.68 mi24629-6210252-3810252-3825246(Top 95%)10641(Top 93%)10641(Top 218%)
25K15.53 mi2.42 mi24670-4110288-3610288-3624775(Top 93%)10388(Top 91%)10388(Top 213%)
30K18.64 mi3.11 mi24645+2510283+510283+524559(Top 92%)10312(Top 90%)10312(Top 211%)
20M20.00 mi1.36 mi24659-1410303-2010303-2024608(Top 92%)10394(Top 91%)10394(Top 213%)
21M21.00 mi1.00 mi24635+2410292+1110292+1123833(Top 90%)9999(Top 88%)9999(Top 205%)
35K21.75 mi0.75 mi24593+4210277+1510277+1523523(Top 88%)9888(Top 87%)9888(Top 202%)
23M23.00 mi1.25 mi24535+5810252+2510252+2523600(Top 89%)9905(Top 87%)9905(Top 203%)
24M24.00 mi1.00 mi24443+9210214+3810214+3822023(Top 83%)9116(Top 80%)9116(Top 187%)
40K24.85 mi0.85 mi24371+7210180+3410180+3421918(Top 82%)9112(Top 80%)9112(Top 187%)
25.2M25.20 mi0.35 mi24330+4110160+2010160+2021994(Top 83%)9137(Top 80%)9137(Top 187%)
Finish26.22 mi1.02 mi24304+2610149+1110149+1123122(Top 87%)9707(Top 85%)9707(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24478

Females

10171

F18-39

10171

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

25542

Females

10763

F18-39

10763

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24478

Females

10171

F18-39

10171

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24851

Females

10396

F18-39

10396

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25246

Females

10641

F18-39

10641

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

24775

Females

10388

F18-39

10388

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24559

Females

10312

F18-39

10312

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24608

Females

10394

F18-39

10394

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23833

Females

9999

F18-39

9999

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23523

Females

9888

F18-39

9888

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23600

Females

9905

F18-39

9905

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22023

Females

9116

F18-39

9116

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21918

Females

9112

F18-39

9112

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

21994

Females

9137

F18-39

9137

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23122

Females

9707

F18-39

9707

Passing Analysis

Category:
Athletes Passed
768
Passed By
2701
Net Change
-1933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22371
5K → 10K21975-1973#22371#24344
10K → 15K97171-74#24344#24418
15K → 20K47196-149#24418#24567
20K → Half971-62#24567#24629
Half → 25K62103-41#24629#24670
25K → 30K10378+25#24670#24645
30K → 20M3650-14#24645#24659
20M → 21M4319+24#24659#24635
21M → 35K497+42#24635#24593
35K → 23M7012+58#24593#24535
23M → 24M942+92#24535#24443
24M → 40K764+72#24443#24371
40K → 25.2M432+41#24371#24330
25.2M → Finish3711+26#24330#24304
TOTALS7682701-1933
📊

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