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BOSTON MARATHON 2023

Kailey Sumner

Bib: 27985•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
26:20
Rank: #17405
Start → 5K
26:20 | 8:29/mi
10K· 6.21 mi
51:56
Rank: #16913 (+492)
5K → 10K
25:36 | 8:14/mi
15K· 9.32 mi
1:17:23
Rank: #16537 (+376)
10K → 15K
25:27 | 8:11/mi
20K· 12.43 mi
1:43:59
Rank: #16740 (-203)
15K → 20K
26:36 | 8:34/mi
Half· 13.11 mi
1:49:42
Rank: #16754 (-14)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:12:39
Rank: #17574 (-820)
Half → 25K
22:57 | 9:28/mi
30K· 18.64 mi
2:42:15
Rank: #18000 (-426)
25K → 30K
29:36 | 9:32/mi
20M
2:55:11
Rank: #18094 (-94)
30K → 20M
12:56 | 9:31/mi
21M
3:05:16
Rank: #18094
20M → 21M
10:05 | 10:05/mi
35K· 21.75 mi
3:12:22
Rank: #18201 (-107)
21M → 35K
7:06 | 9:29/mi
23M
3:23:30
Rank: #18038 (+163)
35K → 23M
11:08 | 8:54/mi
24M
3:32:17
Rank: #17954 (+84)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:39:52
Rank: #17873 (+81)
24M → 40K
7:35 | 8:52/mi
25.2M
3:42:59
Rank: #17799 (+74)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:51:18
Rank: #17633 (+166)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:01:36
Pace9:17 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:5126:208:2926:20
8:29
-
10K
6.21 mi12:09:2751:568:2125:36
8:14
-0:15
15K
9.32 mi12:34:541:17:238:1825:27
8:11
-0:03
20K
12.43 mi13:01:301:43:598:2226:36
8:34
+0:23
Half
13.11 mi13:07:131:49:428:225:43
8:23
-0:11
25K
15.53 mi13:30:102:12:398:3222:57
9:28
+1:05
30K
18.64 mi13:59:462:42:158:4229:36
9:32
+0:04
20M
20.00 mi14:12:422:55:118:4612:56
9:31
-0:01
21M
21.00 mi14:22:473:05:168:4910:05
10:05
+0:34
35K
21.75 mi14:29:533:12:228:517:06
9:29
-0:36
23M
23.00 mi14:41:013:23:308:5111:08
8:54
-0:35
24M
24.00 mi14:49:483:32:178:518:47
8:47
-0:07
40K
24.85 mi14:57:233:39:528:517:35
8:52
+0:05
25.2M
25.20 mi15:00:303:42:598:513:07
9:02
+0:10
Finish
26.22 mi15:08:493:51:188:508:19
8:10
-0:52

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

8:10 /mi

Average Pace

8:50 /mi

Slowest Pace

10:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:01

51% of race

Time at Steady Pace

30:37

13% of race

Time at Slower Pace

1:22:40

36% of race

Average Pace: 8:49 /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 mi11:43:5126:208:2926:20
8:29
#17405
10K
6.21 mi12:09:2751:568:2125:36
8:14
#16913
15K
9.32 mi12:34:541:17:238:1825:27
8:11
#16537
20K
12.43 mi13:01:301:43:598:2226:36
8:34
#16740
Half
13.11 mi13:07:131:49:428:225:43
8:23
#16754
25K
15.53 mi13:30:102:12:398:3222:57
9:28
#17574
30K
18.64 mi13:59:462:42:158:4229:36
9:32
#18000
20M
20.00 mi14:12:422:55:118:4612:56
9:31
#18094
21M
21.00 mi14:22:473:05:168:4910:05
10:05
#18094
35K
21.75 mi14:29:533:12:228:517:06
9:29
#18201
23M
23.00 mi14:41:013:23:308:5111:08
8:54
#18038
24M
24.00 mi14:49:483:32:178:518:47
8:47
#17954
40K
24.85 mi14:57:233:39:528:517:35
8:52
#17873
25.2M
25.20 mi15:00:303:42:598:513:07
9:02
#17799
Finish
26.22 mi15:08:493:51:188:508:19
8:10
#17633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi174056200620015825(Top 59%)5185(Top 45%)5185(Top 106%)
10K6.21 mi3.10 mi16913+4925856+3445856+34416541(Top 62%)5606(Top 49%)5606(Top 115%)
15K9.32 mi3.11 mi16537+3765622+2345622+23415825(Top 59%)5185(Top 45%)5185(Top 106%)
20K12.43 mi3.11 mi16740-2035765-1435765-14317258(Top 65%)6081(Top 53%)6081(Top 125%)
Half13.11 mi0.68 mi16754-145777-125777-1217073(Top 64%)5952(Top 52%)5952(Top 122%)
25K15.53 mi2.42 mi17574-8206280-5036280-50320731(Top 78%)8120(Top 71%)8120(Top 166%)
30K18.64 mi3.11 mi18000-4266562-2826562-28219529(Top 73%)7489(Top 66%)7489(Top 153%)
20M20.00 mi1.36 mi18094-946641-796641-7918929(Top 71%)7255(Top 64%)7255(Top 149%)
21M21.00 mi1.00 mi180946652-116652-1118328(Top 69%)6947(Top 61%)6947(Top 142%)
35K21.75 mi0.75 mi18201-1076725-736725-7319828(Top 74%)7822(Top 68%)7822(Top 160%)
23M23.00 mi1.25 mi18038+1636630+956630+9515530(Top 58%)5475(Top 48%)5475(Top 112%)
24M24.00 mi1.00 mi17954+846597+336597+3316139(Top 61%)5889(Top 52%)5889(Top 121%)
40K24.85 mi0.85 mi17873+816554+436554+4315491(Top 58%)5585(Top 49%)5585(Top 114%)
25.2M25.20 mi0.35 mi17799+746518+366518+3612864(Top 48%)4197(Top 37%)4197(Top 86%)
Finish26.22 mi1.02 mi17633+1666437+816437+8113225(Top 50%)4334(Top 38%)4334(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15825

Females

5185

F18-39

5185

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16541

Females

5606

F18-39

5606

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15825

Females

5185

F18-39

5185

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17258

Females

6081

F18-39

6081

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17073

Females

5952

F18-39

5952

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

20731

Females

8120

F18-39

8120

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19529

Females

7489

F18-39

7489

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18929

Females

7255

F18-39

7255

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18328

Females

6947

F18-39

6947

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19828

Females

7822

F18-39

7822

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15530

Females

5475

F18-39

5475

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16139

Females

5889

F18-39

5889

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15491

Females

5585

F18-39

5585

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12864

Females

4197

F18-39

4197

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13225

Females

4334

F18-39

4334

Passing Analysis

Category:
Athletes Passed
2115
Passed By
2343
Net Change
-228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17405
5K → 10K637145+492#17405#16913
10K → 15K44771+376#16913#16537
15K → 20K111314-203#16537#16740
20K → Half1933-14#16740#16754
Half → 25K22842-820#16754#17574
25K → 30K79505-426#17574#18000
30K → 20M59153-94#18000#18094
20M → 21M1011010#18094#18094
21M → 35K21128-107#18094#18201
35K → 23M1718+163#18201#18038
23M → 24M10016+84#18038#17954
24M → 40K9817+81#17954#17873
40K → 25.2M762+74#17873#17799
25.2M → Finish1748+166#17799#17633
TOTALS21152343-228
📊

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