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BOSTON MARATHON 2023

Kendall Brainin

Bib: 25304•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
32:46
Rank: #24824
Start → 5K
10:33/mi
32:46 split
10K· 6.21 mi
1:04:26
Rank: #24432 (+392)
5K → 10K
10:12/mi
31:40 split
15K· 9.32 mi
1:35:45
Rank: #24163 (+269)
10K → 15K
10:05/mi
31:19 split
20K· 12.43 mi
2:07:23
Rank: #23914 (+249)
15K → 20K
10:11/mi
31:38 split
Half· 13.11 mi
2:14:15
Rank: #23887 (+27)
20K → Half
10:04/mi
6:52 split
25K· 15.53 mi
2:39:55
Rank: #23763 (+124)
Half → 25K
10:35/mi
25:40 split
30K· 18.64 mi
3:15:45
Rank: #23818 (-55)
25K → 30K
11:32/mi
35:50 split
20M
3:32:58
Rank: #23945 (-127)
30K → 20M
12:40/mi
17:13 split
21M
3:45:39
Rank: #23940 (+5)
20M → 21M
12:41/mi
12:41 split
35K· 21.75 mi
3:54:02
Rank: #23939 (+1)
21M → 35K
11:12/mi
8:23 split
23M
4:09:03
Rank: #23959 (-20)
35K → 23M
12:00/mi
15:01 split
24M
4:20:36
Rank: #23961 (-2)
23M → 24M
11:33/mi
11:33 split
40K· 24.85 mi
4:30:57
Rank: #23966 (-5)
24M → 40K
12:06/mi
10:21 split
25.2M
4:35:40
Rank: #23986 (-20)
40K → 25.2M
13:41/mi
4:43 split
Finish· 26.22 mi
4:47:48
Rank: #24044 (-58)
25.2M → Finish
11:54/mi
12:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:15
Pace10:14 /mi
2nd Half
Distance13.11 mi
Time2:33:33
Pace11:43 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1532:4610:3332:46
10:33
-
10K
6.21 mi12:19:551:04:2610:2231:40
10:12
-0:21
15K
9.32 mi12:51:141:35:4510:1631:19
10:05
-0:07
20K
12.43 mi13:22:522:07:2310:1531:38
10:11
+0:06
Half
13.11 mi13:29:442:14:1510:146:52
10:04
-0:07
25K
15.53 mi13:55:242:39:5510:1825:40
10:35
+0:31
30K
18.64 mi14:31:143:15:4510:3035:50
11:32
+0:57
20M
20.00 mi14:48:273:32:5810:3917:13
12:40
+1:08
21M
21.00 mi15:01:083:45:3910:4512:41
12:41
+0:01
35K
21.75 mi15:09:313:54:0210:468:23
11:12
-1:29
23M
23.00 mi15:24:324:09:0310:5015:01
12:00
+0:48
24M
24.00 mi15:36:054:20:3610:5211:33
11:33
-0:27
40K
24.85 mi15:46:264:30:5710:5410:21
12:06
+0:33
25.2M
25.20 mi15:51:094:35:4010:564:43
13:41
+1:35
Finish
26.22 mi16:03:174:47:4810:5912:08
11:54
-1:47

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

10:04 /mi

Average Pace

10:59 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:55

56% of race

Time at Steady Pace

1:22:55

29% of race

Time at Slower Pace

44:58

16% of race

Average Pace: 10:59 /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 mi11:48:1532:4610:3332:46
10:33
#24824
10K
6.21 mi12:19:551:04:2610:2231:40
10:12
#24432
15K
9.32 mi12:51:141:35:4510:1631:19
10:05
#24163
20K
12.43 mi13:22:522:07:2310:1531:38
10:11
#23914
Half
13.11 mi13:29:442:14:1510:146:52
10:04
#23887
25K
15.53 mi13:55:242:39:5510:1825:40
10:35
#23763
30K
18.64 mi14:31:143:15:4510:3035:50
11:32
#23818
20M
20.00 mi14:48:273:32:5810:3917:13
12:40
#23945
21M
21.00 mi15:01:083:45:3910:4512:41
12:41
#23940
35K
21.75 mi15:09:313:54:0210:468:23
11:12
#23939
23M
23.00 mi15:24:324:09:0310:5015:01
12:00
#23959
24M
24.00 mi15:36:054:20:3610:5211:33
11:33
#23961
40K
24.85 mi15:46:264:30:5710:5410:21
12:06
#23966
25.2M
25.20 mi15:51:094:35:4010:564:43
13:41
#23986
Finish
26.22 mi16:03:174:47:4810:5912:08
11:54
#24044
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24824103421034223667(Top 89%)9703(Top 85%)9703(Top 199%)
10K6.21 mi3.10 mi24432+39210121+22110121+22124122(Top 91%)9956(Top 87%)9956(Top 204%)
15K9.32 mi3.11 mi24163+2699981+1409981+14023667(Top 89%)9703(Top 85%)9703(Top 199%)
20K12.43 mi3.11 mi23914+2499839+1429839+14223263(Top 87%)9494(Top 83%)9494(Top 194%)
Half13.11 mi0.68 mi23887+279823+169823+1623432(Top 88%)9599(Top 84%)9599(Top 197%)
25K15.53 mi2.42 mi23763+1249769+549769+5423337(Top 88%)9579(Top 84%)9579(Top 196%)
30K18.64 mi3.11 mi23818-559816-479816-4723910(Top 90%)9966(Top 87%)9966(Top 204%)
20M20.00 mi1.36 mi23945-1279891-759891-7524893(Top 94%)10546(Top 92%)10546(Top 216%)
21M21.00 mi1.00 mi23940+59903-129903-1223695(Top 89%)9923(Top 87%)9923(Top 203%)
35K21.75 mi0.75 mi23939+19913-109913-1023669(Top 89%)9975(Top 87%)9975(Top 204%)
23M23.00 mi1.25 mi23959-209930-179930-1723993(Top 90%)10119(Top 89%)10119(Top 207%)
24M24.00 mi1.00 mi23961-29942-129942-1223948(Top 90%)10141(Top 89%)10141(Top 208%)
40K24.85 mi0.85 mi23966-59956-149956-1424028(Top 90%)10192(Top 89%)10192(Top 209%)
25.2M25.20 mi0.35 mi23986-209966-109966-1024710(Top 93%)10540(Top 92%)10540(Top 216%)
Finish26.22 mi1.02 mi24044-5810004-3810004-3825151(Top 94%)10743(Top 94%)10743(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23667

Females

9703

F18-39

9703

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24122

Females

9956

F18-39

9956

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23667

Females

9703

F18-39

9703

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23263

Females

9494

F18-39

9494

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23432

Females

9599

F18-39

9599

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23337

Females

9579

F18-39

9579

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

23910

Females

9966

F18-39

9966

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24893

Females

10546

F18-39

10546

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23695

Females

9923

F18-39

9923

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23669

Females

9975

F18-39

9975

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

23993

Females

10119

F18-39

10119

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23948

Females

10141

F18-39

10141

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

24028

Females

10192

F18-39

10192

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24710

Females

10540

F18-39

10540

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25151

Females

10743

F18-39

10743

Passing Analysis

Category:
Athletes Passed
1498
Passed By
718
Net Change
+780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24824
5K → 10K45361+392#24824#24432
10K → 15K30738+269#24432#24163
15K → 20K27223+249#24163#23914
20K → Half4215+27#23914#23887
Half → 25K15228+124#23887#23763
25K → 30K83138-55#23763#23818
30K → 20M17144-127#23818#23945
20M → 21M4742+5#23945#23940
21M → 35K3433+1#23940#23939
35K → 23M2747-20#23939#23959
23M → 24M2224-2#23959#23961
24M → 40K2732-5#23961#23966
40K → 25.2M323-20#23966#23986
25.2M → Finish1270-58#23986#24044
TOTALS1498718+780
📊

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