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BOSTON MARATHON 2023

Molly Janiszewski

Bib: 25858•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
29:23
Rank: #21973
Start → 5K
29:23 | 9:27/mi
10K· 6.21 mi
57:35
Rank: #21631 (+342)
5K → 10K
28:12 | 9:05/mi
15K· 9.32 mi
1:25:42
Rank: #21348 (+283)
10K → 15K
28:07 | 9:03/mi
20K· 12.43 mi
1:54:47
Rank: #21299 (+49)
15K → 20K
29:05 | 9:22/mi
Half· 13.11 mi
2:01:07
Rank: #21309 (-10)
20K → Half
6:20 | 9:17/mi
25K· 15.53 mi
2:24:17
Rank: #21247 (+62)
Half → 25K
23:10 | 9:33/mi
30K· 18.64 mi
2:55:08
Rank: #21167 (+80)
25K → 30K
30:51 | 9:56/mi
20M
3:08:52
Rank: #21100 (+67)
30K → 20M
13:44 | 10:06/mi
21M
3:19:50
Rank: #21081 (+19)
20M → 21M
10:58 | 10:58/mi
35K· 21.75 mi
3:27:04
Rank: #21048 (+33)
21M → 35K
7:14 | 9:40/mi
23M
3:39:56
Rank: #21010 (+38)
35K → 23M
12:52 | 10:17/mi
24M
3:49:52
Rank: #20980 (+30)
23M → 24M
9:56 | 9:56/mi
40K· 24.85 mi
3:58:29
Rank: #20931 (+49)
24M → 40K
8:37 | 10:05/mi
25.2M
4:02:08
Rank: #20899 (+32)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
4:11:26
Rank: #20817 (+82)
25.2M → Finish
9:18 | 9:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:07
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:10:19
Pace9:56 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0429:239:2729:23
9:27
-
10K
6.21 mi12:15:1657:359:1628:12
9:05
-0:22
15K
9.32 mi12:43:231:25:429:1228:07
9:03
-0:02
20K
12.43 mi13:12:281:54:479:1429:05
9:22
+0:19
Half
13.11 mi13:18:482:01:079:146:20
9:17
-0:05
25K
15.53 mi13:41:582:24:179:1723:10
9:33
+0:16
30K
18.64 mi14:12:492:55:089:2430:51
9:56
+0:23
20M
20.00 mi14:26:333:08:529:2713:44
10:06
+0:10
21M
21.00 mi14:37:313:19:509:3110:58
10:58
+0:52
35K
21.75 mi14:44:453:27:049:317:14
9:40
-1:18
23M
23.00 mi14:57:373:39:569:3412:52
10:17
+0:37
24M
24.00 mi15:07:333:49:529:359:56
9:56
-0:21
40K
24.85 mi15:16:103:58:299:368:37
10:05
+0:09
25.2M
25.20 mi15:19:494:02:089:373:39
10:35
+0:30
Finish
26.22 mi15:29:074:11:269:369:18
9:08
-1:27

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

9:03 /mi

Average Pace

9:36 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:02

40% of race

Time at Steady Pace

1:40:34

40% of race

Time at Slower Pace

49:50

20% of race

Average Pace: 9:35 /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 mi11:47:0429:239:2729:23
9:27
#21973
10K
6.21 mi12:15:1657:359:1628:12
9:05
#21631
15K
9.32 mi12:43:231:25:429:1228:07
9:03
#21348
20K
12.43 mi13:12:281:54:479:1429:05
9:22
#21299
Half
13.11 mi13:18:482:01:079:146:20
9:17
#21309
25K
15.53 mi13:41:582:24:179:1723:10
9:33
#21247
30K
18.64 mi14:12:492:55:089:2430:51
9:56
#21167
20M
20.00 mi14:26:333:08:529:2713:44
10:06
#21100
21M
21.00 mi14:37:313:19:509:3110:58
10:58
#21081
35K
21.75 mi14:44:453:27:049:317:14
9:40
#21048
23M
23.00 mi14:57:373:39:569:3412:52
10:17
#21010
24M
24.00 mi15:07:333:49:529:359:56
9:56
#20980
40K
24.85 mi15:16:103:58:299:368:37
10:05
#20931
25.2M
25.20 mi15:19:494:02:089:373:39
10:35
#20899
Finish
26.22 mi15:29:074:11:269:369:18
9:08
#20817
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi219738866886620743(Top 78%)8090(Top 71%)8090(Top 166%)
10K6.21 mi3.10 mi21631+3428652+2148652+21421184(Top 80%)8375(Top 73%)8375(Top 171%)
15K9.32 mi3.11 mi21348+2838472+1808472+18020743(Top 78%)8090(Top 71%)8090(Top 166%)
20K12.43 mi3.11 mi21299+498430+428430+4221133(Top 79%)8310(Top 73%)8310(Top 170%)
Half13.11 mi0.68 mi21309-108439-98439-921469(Top 81%)8498(Top 74%)8498(Top 174%)
25K15.53 mi2.42 mi21247+628409+308409+3021019(Top 79%)8274(Top 72%)8274(Top 169%)
30K18.64 mi3.11 mi21167+808372+378372+3720821(Top 78%)8242(Top 72%)8242(Top 169%)
20M20.00 mi1.36 mi21100+678358+148358+1420766(Top 78%)8286(Top 73%)8286(Top 170%)
21M21.00 mi1.00 mi21081+198368-108368-1020768(Top 78%)8337(Top 73%)8337(Top 171%)
35K21.75 mi0.75 mi21048+338355+138355+1320390(Top 77%)8164(Top 71%)8164(Top 167%)
23M23.00 mi1.25 mi21010+388336+198336+1920782(Top 78%)8397(Top 74%)8397(Top 172%)
24M24.00 mi1.00 mi20980+308334+28334+220605(Top 77%)8328(Top 73%)8328(Top 171%)
40K24.85 mi0.85 mi20931+498318+168318+1620192(Top 76%)8161(Top 71%)8161(Top 167%)
25.2M25.20 mi0.35 mi20899+328301+178301+1719408(Top 73%)7742(Top 68%)7742(Top 159%)
Finish26.22 mi1.02 mi20817+828267+348267+3418606(Top 70%)7236(Top 63%)7236(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20743

Females

8090

F18-39

8090

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21184

Females

8375

F18-39

8375

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20743

Females

8090

F18-39

8090

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

21133

Females

8310

F18-39

8310

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

21469

Females

8498

F18-39

8498

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

21019

Females

8274

F18-39

8274

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20821

Females

8242

F18-39

8242

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20766

Females

8286

F18-39

8286

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20768

Females

8337

F18-39

8337

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20390

Females

8164

F18-39

8164

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20782

Females

8397

F18-39

8397

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20605

Females

8328

F18-39

8328

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20192

Females

8161

F18-39

8161

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19408

Females

7742

F18-39

7742

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

18606

Females

7236

F18-39

7236

Passing Analysis

Category:
Athletes Passed
1850
Passed By
694
Net Change
+1156
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21973
5K → 10K469127+342#21973#21631
10K → 15K33451+283#21631#21348
15K → 20K169120+49#21348#21299
20K → Half2131-10#21299#21309
Half → 25K13674+62#21309#21247
25K → 30K16686+80#21247#21167
30K → 20M9730+67#21167#21100
20M → 21M7354+19#21100#21081
21M → 35K5623+33#21081#21048
35K → 23M8648+38#21048#21010
23M → 24M5525+30#21010#20980
24M → 40K6112+49#20980#20931
40K → 25.2M342+32#20931#20899
25.2M → Finish9311+82#20899#20817
TOTALS1850694+1156
📊

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