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BOSTON MARATHON 2023

Mackenzie Cohen

Bib: 24962•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
33:16
Rank: #25202
Start → 5K
33:16 | 10:42/mi
10K· 6.21 mi
1:07:15
Rank: #25311 (-109)
5K → 10K
33:59 | 10:56/mi
15K· 9.32 mi
1:43:43
Rank: #25614 (-303)
10K → 15K
36:28 | 11:44/mi
20K· 12.43 mi
2:17:44
Rank: #25336 (+278)
15K → 20K
34:01 | 10:57/mi
Half· 13.11 mi
2:25:05
Rank: #25303 (+33)
20K → Half
7:21 | 10:46/mi
25K· 15.53 mi
2:51:52
Rank: #25097 (+206)
Half → 25K
26:47 | 11:03/mi
30K· 18.64 mi
3:28:04
Rank: #24931 (+166)
25K → 30K
36:12 | 11:39/mi
20M
3:43:34
Rank: #24818 (+113)
30K → 20M
15:30 | 11:24/mi
21M
3:55:23
Rank: #24721 (+97)
20M → 21M
11:49 | 11:49/mi
35K· 21.75 mi
4:03:29
Rank: #24654 (+67)
21M → 35K
8:06 | 10:50/mi
23M
4:17:01
Rank: #24509 (+145)
35K → 23M
13:32 | 10:49/mi
24M
4:27:35
Rank: #24423 (+86)
23M → 24M
10:34 | 10:34/mi
40K· 24.85 mi
4:36:42
Rank: #24338 (+85)
24M → 40K
9:07 | 10:40/mi
25.2M
4:40:40
Rank: #24300 (+38)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:51:19
Rank: #24269 (+31)
25.2M → Finish
10:39 | 10:27/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:25:05
Pace11:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:26:14
Pace11:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3933:1610:4233:16
10:42
-
10K
6.21 mi12:30:381:07:1510:4933:59
10:56
+0:14
15K
9.32 mi13:07:061:43:4311:0836:28
11:44
+0:48
20K
12.43 mi13:41:072:17:4411:0534:01
10:57
-0:47
Half
13.11 mi13:48:282:25:0511:047:21
10:46
-0:11
25K
15.53 mi14:15:152:51:5211:0426:47
11:03
+0:17
30K
18.64 mi14:51:273:28:0411:1036:12
11:39
+0:36
20M
20.00 mi15:06:573:43:3411:1115:30
11:24
-0:15
21M
21.00 mi15:18:463:55:2311:1311:49
11:49
+0:25
35K
21.75 mi15:26:524:03:2911:128:06
10:50
-0:59
23M
23.00 mi15:40:244:17:0111:1013:32
10:49
-0:01
24M
24.00 mi15:50:584:27:3511:0910:34
10:34
-0:15
40K
24.85 mi16:00:054:36:4211:089:07
10:40
+0:06
25.2M
25.20 mi16:04:034:40:4011:083:58
11:30
+0:50
Finish
26.22 mi16:14:424:51:1911:0710:39
10:27
-1:03

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

10:27 /mi

Average Pace

11:07 /mi

Slowest Pace

11:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:52

70% of race

Time at Steady Pace

1:28:27

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:07 /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 mi11:56:3933:1610:4233:16
10:42
#25202
10K
6.21 mi12:30:381:07:1510:4933:59
10:56
#25311
15K
9.32 mi13:07:061:43:4311:0836:28
11:44
#25614
20K
12.43 mi13:41:072:17:4411:0534:01
10:57
#25336
Half
13.11 mi13:48:282:25:0511:047:21
10:46
#25303
25K
15.53 mi14:15:152:51:5211:0426:47
11:03
#25097
30K
18.64 mi14:51:273:28:0411:1036:12
11:39
#24931
20M
20.00 mi15:06:573:43:3411:1115:30
11:24
#24818
21M
21.00 mi15:18:463:55:2311:1311:49
11:49
#24721
35K
21.75 mi15:26:524:03:2911:128:06
10:50
#24654
23M
23.00 mi15:40:244:17:0111:1013:32
10:49
#24509
24M
24.00 mi15:50:584:27:3511:0910:34
10:34
#24423
40K
24.85 mi16:00:054:36:4211:089:07
10:40
#24338
25.2M
25.20 mi16:04:034:40:4011:083:58
11:30
#24300
Finish
26.22 mi16:14:424:51:1911:0710:39
10:27
#24269
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25202105461054625893(Top 97%)10980(Top 96%)10980(Top 225%)
10K6.21 mi3.10 mi25311-10910605-5910605-5925393(Top 95%)10662(Top 93%)10662(Top 218%)
15K9.32 mi3.11 mi25614-30310802-19710802-19725893(Top 97%)10980(Top 96%)10980(Top 225%)
20K12.43 mi3.11 mi25336+27810648+15410648+15424555(Top 92%)10230(Top 90%)10230(Top 209%)
Half13.11 mi0.68 mi25303+3310633+1510633+1524641(Top 93%)10285(Top 90%)10285(Top 211%)
25K15.53 mi2.42 mi25097+20610520+11310520+11324059(Top 90%)9982(Top 87%)9982(Top 204%)
30K18.64 mi3.11 mi24931+16610450+7010450+7024062(Top 90%)10046(Top 88%)10046(Top 206%)
20M20.00 mi1.36 mi24818+11310392+5810392+5823375(Top 88%)9721(Top 85%)9721(Top 199%)
21M21.00 mi1.00 mi24721+9710344+4810344+4822463(Top 84%)9261(Top 81%)9261(Top 190%)
35K21.75 mi0.75 mi24654+6710313+3110313+3122993(Top 86%)9591(Top 84%)9591(Top 196%)
23M23.00 mi1.25 mi24509+14510234+7910234+7921992(Top 83%)9068(Top 79%)9068(Top 186%)
24M24.00 mi1.00 mi24423+8610207+2710207+2722185(Top 83%)9206(Top 81%)9206(Top 188%)
40K24.85 mi0.85 mi24338+8510159+4810159+4821649(Top 81%)8972(Top 79%)8972(Top 184%)
25.2M25.20 mi0.35 mi24300+3810144+1510144+1521616(Top 81%)8931(Top 78%)8931(Top 183%)
Finish26.22 mi1.02 mi24269+3110125+1910125+1922921(Top 86%)9618(Top 84%)9618(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25893

Females

10980

F18-39

10980

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

25393

Females

10662

F18-39

10662

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25893

Females

10980

F18-39

10980

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24555

Females

10230

F18-39

10230

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24641

Females

10285

F18-39

10285

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

24059

Females

9982

F18-39

9982

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

24062

Females

10046

F18-39

10046

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

23375

Females

9721

F18-39

9721

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22463

Females

9261

F18-39

9261

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22993

Females

9591

F18-39

9591

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

21992

Females

9068

F18-39

9068

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22185

Females

9206

F18-39

9206

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21649

Females

8972

F18-39

8972

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21616

Females

8931

F18-39

8931

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22921

Females

9618

F18-39

9618

Passing Analysis

Category:
Athletes Passed
1542
Passed By
609
Net Change
+933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25202
5K → 10K122231-109#25202#25311
10K → 15K23326-303#25311#25614
15K → 20K2835+278#25614#25336
20K → Half385+33#25336#25303
Half → 25K2104+206#25303#25097
25K → 30K18418+166#25097#24931
30K → 20M1185+113#24931#24818
20M → 21M970+97#24818#24721
21M → 35K670+67#24721#24654
35K → 23M1483+145#24654#24509
23M → 24M860+86#24509#24423
24M → 40K850+85#24423#24338
40K → 25.2M413+38#24338#24300
25.2M → Finish409+31#24300#24269
TOTALS1542609+933
📊

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