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BOSTON MARATHON 2023

Kathryn Healy

Bib: 24760•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
29:34
Rank: #22140
Start → 5K
9:31/mi
29:34 split
10K· 6.21 mi
57:36
Rank: #21635 (+505)
5K → 10K
9:01/mi
28:02 split
15K· 9.32 mi
1:25:09
Rank: #21161 (+474)
10K → 15K
8:52/mi
27:33 split
20K· 12.43 mi
1:54:23
Rank: #21200 (-39)
15K → 20K
9:25/mi
29:14 split
Half· 13.11 mi
2:00:28
Rank: #21148 (+52)
20K → Half
8:55/mi
6:05 split
25K· 15.53 mi
2:23:39
Rank: #21110 (+38)
Half → 25K
9:34/mi
23:11 split
30K· 18.64 mi
2:53:01
Rank: #20755 (+355)
25K → 30K
9:27/mi
29:22 split
20M
3:06:14
Rank: #20643 (+112)
30K → 20M
9:44/mi
13:13 split
21M
3:16:14
Rank: #20487 (+156)
20M → 21M
10:00/mi
10:00 split
35K· 21.75 mi
3:22:38
Rank: #20334 (+153)
21M → 35K
8:33/mi
6:24 split
23M
3:33:58
Rank: #20139 (+195)
35K → 23M
9:03/mi
11:20 split
24M
3:43:15
Rank: #20080 (+59)
23M → 24M
9:17/mi
9:17 split
40K· 24.85 mi
3:51:04
Rank: #19966 (+114)
24M → 40K
9:09/mi
7:49 split
25.2M
3:54:18
Rank: #19896 (+70)
40K → 25.2M
9:23/mi
3:14 split
Finish· 26.22 mi
4:02:53
Rank: #19743 (+153)
25.2M → Finish
8:25/mi
8:35 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:28
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:02:25
Pace9:20 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3729:349:3129:34
9:31
-
10K
6.21 mi12:19:3957:369:1628:02
9:01
-0:30
15K
9.32 mi12:47:121:25:099:0827:33
8:52
-0:09
20K
12.43 mi13:16:261:54:239:1229:14
9:25
+0:33
Half
13.11 mi13:22:312:00:289:116:05
8:55
-0:30
25K
15.53 mi13:45:422:23:399:1523:11
9:34
+0:39
30K
18.64 mi14:15:042:53:019:1729:22
9:27
-0:07
20M
20.00 mi14:28:173:06:149:1913:13
9:44
+0:17
21M
21.00 mi14:38:173:16:149:2110:00
10:00
+0:16
35K
21.75 mi14:44:413:22:389:196:24
8:33
-1:27
23M
23.00 mi14:56:013:33:589:1811:20
9:03
+0:30
24M
24.00 mi15:05:183:43:159:189:17
9:17
+0:14
40K
24.85 mi15:13:073:51:049:187:49
9:09
-0:08
25.2M
25.20 mi15:16:213:54:189:183:14
9:23
+0:14
Finish
26.22 mi15:24:564:02:539:168:35
8:25
-0:58

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

8:25 /mi

Average Pace

9:16 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:48

39% of race

Time at Steady Pace

2:17:05

56% of race

Time at Slower Pace

10:00

4% 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:51:3729:349:3129:34
9:31
#22140
10K
6.21 mi12:19:3957:369:1628:02
9:01
#21635
15K
9.32 mi12:47:121:25:099:0827:33
8:52
#21161
20K
12.43 mi13:16:261:54:239:1229:14
9:25
#21200
Half
13.11 mi13:22:312:00:289:116:05
8:55
#21148
25K
15.53 mi13:45:422:23:399:1523:11
9:34
#21110
30K
18.64 mi14:15:042:53:019:1729:22
9:27
#20755
20M
20.00 mi14:28:173:06:149:1913:13
9:44
#20643
21M
21.00 mi14:38:173:16:149:2110:00
10:00
#20487
35K
21.75 mi14:44:413:22:389:196:24
8:33
#20334
23M
23.00 mi14:56:013:33:589:1811:20
9:03
#20139
24M
24.00 mi15:05:183:43:159:189:17
9:17
#20080
40K
24.85 mi15:13:073:51:049:187:49
9:09
#19966
25.2M
25.20 mi15:16:213:54:189:183:14
9:23
#19896
Finish
26.22 mi15:24:564:02:539:168:35
8:25
#19743
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi221408944894419895(Top 75%)7630(Top 67%)7630(Top 156%)
10K6.21 mi3.10 mi21635+5058654+2908654+29020978(Top 79%)8250(Top 72%)8250(Top 169%)
15K9.32 mi3.11 mi21161+4748365+2898365+28919895(Top 75%)7630(Top 67%)7630(Top 156%)
20K12.43 mi3.11 mi21200-398381-168381-1621265(Top 80%)8380(Top 73%)8380(Top 172%)
Half13.11 mi0.68 mi21148+528346+358346+3520088(Top 75%)7715(Top 68%)7715(Top 158%)
25K15.53 mi2.42 mi21110+388330+168330+1621034(Top 79%)8284(Top 73%)8284(Top 170%)
30K18.64 mi3.11 mi20755+3558132+1988132+19819263(Top 72%)7337(Top 64%)7337(Top 150%)
20M20.00 mi1.36 mi20643+1128100+328100+3219636(Top 74%)7654(Top 67%)7654(Top 157%)
21M21.00 mi1.00 mi20487+1568025+758025+7518054(Top 68%)6802(Top 60%)6802(Top 139%)
35K21.75 mi0.75 mi20334+1537951+747951+7415664(Top 59%)5523(Top 48%)5523(Top 113%)
23M23.00 mi1.25 mi20139+1957845+1067845+10616351(Top 61%)5951(Top 52%)5951(Top 122%)
24M24.00 mi1.00 mi20080+597822+237822+2318413(Top 69%)7120(Top 62%)7120(Top 146%)
40K24.85 mi0.85 mi19966+1147764+587764+5816874(Top 63%)6339(Top 55%)6339(Top 130%)
25.2M25.20 mi0.35 mi19896+707721+437721+4314703(Top 55%)5169(Top 45%)5169(Top 106%)
Finish26.22 mi1.02 mi19743+1537641+807641+8014934(Top 56%)5235(Top 46%)5235(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19895

Females

7630

F18-39

7630

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20978

Females

8250

F18-39

8250

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19895

Females

7630

F18-39

7630

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21265

Females

8380

F18-39

8380

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

20088

Females

7715

F18-39

7715

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21034

Females

8284

F18-39

8284

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19263

Females

7337

F18-39

7337

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19636

Females

7654

F18-39

7654

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18054

Females

6802

F18-39

6802

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15664

Females

5523

F18-39

5523

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16351

Females

5951

F18-39

5951

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18413

Females

7120

F18-39

7120

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16874

Females

6339

F18-39

6339

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14703

Females

5169

F18-39

5169

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14934

Females

5235

F18-39

5235

Passing Analysis

Category:
Athletes Passed
2833
Passed By
436
Net Change
+2397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22140
5K → 10K58782+505#22140#21635
10K → 15K49420+474#21635#21161
15K → 20K127166-39#21161#21200
20K → Half575+52#21200#21148
Half → 25K12486+38#21148#21110
25K → 30K37924+355#21110#20755
30K → 20M12816+112#20755#20643
20M → 21M1648+156#20643#20487
21M → 35K1541+153#20487#20334
35K → 23M1983+195#20334#20139
23M → 24M7617+59#20139#20080
24M → 40K1184+114#20080#19966
40K → 25.2M722+70#19966#19896
25.2M → Finish1552+153#19896#19743
TOTALS2833436+2397
📊

Passing Visuals

Category:
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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