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BOSTON MARATHON 2023

Molly Cohen

Bib: 19935•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 50%
Masters (Masters Women)
#0 / 6539
Top 40%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:55
Rank: #16452
Start → 5K
25:55 | 8:21/mi
10K· 6.21 mi
51:30
Rank: #16428 (+24)
5K → 10K
25:35 | 8:14/mi
15K· 9.32 mi
1:17:32
Rank: #16648 (-220)
10K → 15K
26:02 | 8:23/mi
20K· 12.43 mi
1:43:51
Rank: #16674 (-26)
15K → 20K
26:19 | 8:28/mi
Half· 13.11 mi
1:49:31
Rank: #16662 (+12)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:10:05
Rank: #16570 (+92)
Half → 25K
20:34 | 8:29/mi
30K· 18.64 mi
2:37:34
Rank: #16477 (+93)
25K → 30K
27:29 | 8:51/mi
20M
2:49:43
Rank: #16438 (+39)
30K → 20M
12:09 | 8:56/mi
21M
2:59:10
Rank: #16379 (+59)
20M → 21M
9:27 | 9:27/mi
35K· 21.75 mi
3:05:27
Rank: #16322 (+57)
21M → 35K
6:17 | 8:24/mi
23M
3:16:37
Rank: #16263 (+59)
35K → 23M
11:10 | 8:55/mi
24M
3:25:32
Rank: #16270 (-7)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:33:32
Rank: #16326 (-56)
24M → 40K
8:00 | 9:21/mi
25.2M
3:36:52
Rank: #16326
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:46:00
Rank: #16371 (-45)
25.2M → Finish
9:08 | 8:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:31
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:56:29
Pace8:53 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2625:558:2125:55
8:21
-
10K
6.21 mi11:43:0151:308:1725:35
8:14
-0:07
15K
9.32 mi12:09:031:17:328:1926:02
8:23
+0:09
20K
12.43 mi12:35:221:43:518:2126:19
8:28
+0:05
Half
13.11 mi12:41:021:49:318:215:40
8:18
-0:10
25K
15.53 mi13:01:362:10:058:2220:34
8:29
+0:11
30K
18.64 mi13:29:052:37:348:2727:29
8:51
+0:22
20M
20.00 mi13:41:142:49:438:2912:09
8:56
+0:05
21M
21.00 mi13:50:412:59:108:329:27
9:27
+0:31
35K
21.75 mi13:56:583:05:278:326:17
8:24
-1:03
23M
23.00 mi14:08:083:16:378:3311:10
8:55
+0:31
24M
24.00 mi14:17:033:25:328:348:55
8:55
0:00
40K
24.85 mi14:25:033:33:328:358:00
9:21
+0:26
25.2M
25.20 mi14:28:233:36:528:363:20
9:40
+0:19
Finish
26.22 mi14:37:313:46:008:389:08
8:58
-0:42

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

8:14 /mi

Average Pace

8:38 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:13

91% of race

Time at Steady Pace

20:47

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:17:2625:558:2125:55
8:21
#16452
10K
6.21 mi11:43:0151:308:1725:35
8:14
#16428
15K
9.32 mi12:09:031:17:328:1926:02
8:23
#16648
20K
12.43 mi12:35:221:43:518:2126:19
8:28
#16674
Half
13.11 mi12:41:021:49:318:215:40
8:18
#16662
25K
15.53 mi13:01:362:10:058:2220:34
8:29
#16570
30K
18.64 mi13:29:052:37:348:2727:29
8:51
#16477
20M
20.00 mi13:41:142:49:438:2912:09
8:56
#16438
21M
21.00 mi13:50:412:59:108:329:27
9:27
#16379
35K
21.75 mi13:56:583:05:278:326:17
8:24
#16322
23M
23.00 mi14:08:083:16:378:3311:10
8:55
#16263
24M
24.00 mi14:17:033:25:328:348:55
8:55
#16270
40K
24.85 mi14:25:033:33:328:358:00
9:21
#16326
25.2M
25.20 mi14:28:233:36:528:363:20
9:40
#16326
Finish
26.22 mi14:37:313:46:008:389:08
8:58
#16371
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi164525572557217034(Top 64%)5938(Top 52%)5938(Top 316%)
10K6.21 mi3.10 mi16428+245544+285544+2816504(Top 62%)5579(Top 49%)5579(Top 297%)
15K9.32 mi3.11 mi16648-2205694-1505694-15017034(Top 64%)5938(Top 52%)5938(Top 316%)
20K12.43 mi3.11 mi16674-265719-255719-2516680(Top 63%)5745(Top 50%)5745(Top 306%)
Half13.11 mi0.68 mi16662+125722-35722-316558(Top 62%)5641(Top 49%)5641(Top 300%)
25K15.53 mi2.42 mi16570+925679+435679+4316098(Top 60%)5505(Top 48%)5505(Top 293%)
30K18.64 mi3.11 mi16477+935675+45675+416365(Top 61%)5709(Top 50%)5709(Top 304%)
20M20.00 mi1.36 mi16438+395667+85667+816235(Top 61%)5706(Top 50%)5706(Top 304%)
21M21.00 mi1.00 mi16379+595642+255642+2515755(Top 59%)5490(Top 48%)5490(Top 292%)
35K21.75 mi0.75 mi16322+575614+285614+2814771(Top 55%)4985(Top 44%)4985(Top 265%)
23M23.00 mi1.25 mi16263+595591+235591+2315650(Top 59%)5548(Top 49%)5548(Top 295%)
24M24.00 mi1.00 mi16270-75615-245615-2416864(Top 63%)6279(Top 55%)6279(Top 334%)
40K24.85 mi0.85 mi16326-565670-555670-5517788(Top 67%)6829(Top 60%)6829(Top 364%)
25.2M25.20 mi0.35 mi163265676-65676-616002(Top 60%)5866(Top 51%)5866(Top 312%)
Finish26.22 mi1.02 mi16371-455700-245700-2417801(Top 67%)6805(Top 60%)6805(Top 362%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17034

Females

5938

F40-44

5938

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16504

Females

5579

F40-44

5579

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17034

Females

5938

F40-44

5938

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16680

Females

5745

F40-44

5745

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16558

Females

5641

F40-44

5641

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16098

Females

5505

F40-44

5505

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16365

Females

5709

F40-44

5709

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16235

Females

5706

F40-44

5706

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15755

Females

5490

F40-44

5490

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14771

Females

4985

F40-44

4985

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15650

Females

5548

F40-44

5548

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16864

Females

6279

F40-44

6279

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17788

Females

6829

F40-44

6829

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16002

Females

5866

F40-44

5866

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17801

Females

6805

F40-44

6805

Passing Analysis

Category:
Athletes Passed
1603
Passed By
1522
Net Change
+81
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16452
5K → 10K306282+24#16452#16428
10K → 15K123343-220#16428#16648
15K → 20K161187-26#16648#16674
20K → Half3523+12#16674#16662
Half → 25K17381+92#16662#16570
25K → 30K226133+93#16570#16477
30K → 20M9051+39#16477#16438
20M → 21M10546+59#16438#16379
21M → 35K7518+57#16379#16322
35K → 23M10950+59#16322#16263
23M → 24M7481-7#16263#16270
24M → 40K48104-56#16270#16326
40K → 25.2M36360#16326#16326
25.2M → Finish4287-45#16326#16371
TOTALS16031522+81
📊

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