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BOSTON MARATHON 2023

Molly Jergenson

Bib: 16095•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:49
Rank: #11170
Start → 5K
23:49 | 7:40/mi
10K· 6.21 mi
47:09
Rank: #10827 (+343)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:10:24
Rank: #10532 (+295)
10K → 15K
23:15 | 7:29/mi
20K· 12.43 mi
1:34:04
Rank: #10432 (+100)
15K → 20K
23:40 | 7:37/mi
Half· 13.11 mi
1:39:10
Rank: #10409 (+23)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:57:58
Rank: #10438 (-29)
Half → 25K
18:48 | 7:45/mi
30K· 18.64 mi
2:23:20
Rank: #10675 (-237)
25K → 30K
25:22 | 8:10/mi
20M
2:34:40
Rank: #10785 (-110)
30K → 20M
11:20 | 8:20/mi
21M
2:43:22
Rank: #10841 (-56)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:49:20
Rank: #10871 (-30)
21M → 35K
5:58 | 7:59/mi
23M
2:59:43
Rank: #10907 (-36)
35K → 23M
10:23 | 8:18/mi
24M
3:07:42
Rank: #10902 (+5)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:14:31
Rank: #10840 (+62)
24M → 40K
6:49 | 7:58/mi
25.2M
3:17:27
Rank: #10808 (+32)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:25:11
Rank: #10717 (+91)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:10
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:46:01
Pace8:05 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0923:497:4023:49
7:40
-
10K
6.21 mi11:37:2947:097:3523:20
7:31
-0:09
15K
9.32 mi12:00:441:10:247:3323:15
7:29
-0:02
20K
12.43 mi12:24:241:34:047:3423:40
7:37
+0:08
Half
13.11 mi12:29:301:39:107:345:06
7:29
-0:08
25K
15.53 mi12:48:181:57:587:3618:48
7:45
+0:16
30K
18.64 mi13:13:402:23:207:4125:22
8:10
+0:25
20M
20.00 mi13:25:002:34:407:4411:20
8:20
+0:10
21M
21.00 mi13:33:422:43:227:478:42
8:42
+0:22
35K
21.75 mi13:39:402:49:207:475:58
7:59
-0:43
23M
23.00 mi13:50:032:59:437:4910:23
8:18
+0:19
24M
24.00 mi13:58:023:07:427:497:59
7:59
-0:19
40K
24.85 mi14:04:513:14:317:506:49
7:58
-0:01
25.2M
25.20 mi14:07:473:17:277:502:56
8:30
+0:32
Finish
26.22 mi14:15:313:25:117:507:44
7:35
-0:55

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

7:29 /mi

Average Pace

7:50 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:50

84% of race

Time at Steady Pace

33:21

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:14:0923:497:4023:49
7:40
#11170
10K
6.21 mi11:37:2947:097:3523:20
7:31
#10827
15K
9.32 mi12:00:441:10:247:3323:15
7:29
#10532
20K
12.43 mi12:24:241:34:047:3423:40
7:37
#10432
Half
13.11 mi12:29:301:39:107:345:06
7:29
#10409
25K
15.53 mi12:48:181:57:587:3618:48
7:45
#10438
30K
18.64 mi13:13:402:23:207:4125:22
8:10
#10675
20M
20.00 mi13:25:002:34:407:4411:20
8:20
#10785
21M
21.00 mi13:33:422:43:227:478:42
8:42
#10841
35K
21.75 mi13:39:402:49:207:475:58
7:59
#10871
23M
23.00 mi13:50:032:59:437:4910:23
8:18
#10907
24M
24.00 mi13:58:023:07:427:497:59
7:59
#10902
40K
24.85 mi14:04:513:14:317:506:49
7:58
#10840
25.2M
25.20 mi14:07:473:17:277:502:56
8:30
#10808
Finish
26.22 mi14:15:313:25:117:507:44
7:35
#10717
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111702417241710057(Top 38%)1870(Top 16%)1870(Top 38%)
10K6.21 mi3.10 mi10827+3432239+1782239+17810540(Top 40%)2077(Top 18%)2077(Top 43%)
15K9.32 mi3.11 mi10532+2952081+1582081+15810057(Top 38%)1870(Top 16%)1870(Top 38%)
20K12.43 mi3.11 mi10432+1002037+442037+4410232(Top 38%)2017(Top 18%)2017(Top 41%)
Half13.11 mi0.68 mi10409+232033+42033+410112(Top 38%)1948(Top 17%)1948(Top 40%)
25K15.53 mi2.42 mi10438-292066-332066-3310748(Top 40%)2361(Top 21%)2361(Top 48%)
30K18.64 mi3.11 mi10675-2372244-1782244-17812094(Top 45%)3232(Top 28%)3232(Top 66%)
20M20.00 mi1.36 mi10785-1102325-812325-8112623(Top 47%)3643(Top 32%)3643(Top 75%)
21M21.00 mi1.00 mi10841-562378-532378-5311674(Top 44%)3225(Top 28%)3225(Top 66%)
35K21.75 mi0.75 mi10871-302408-302408-3011945(Top 45%)3381(Top 30%)3381(Top 69%)
23M23.00 mi1.25 mi10907-362453-452453-4511847(Top 45%)3425(Top 30%)3425(Top 70%)
24M24.00 mi1.00 mi10902+52476-232476-2311129(Top 42%)3153(Top 28%)3153(Top 65%)
40K24.85 mi0.85 mi10840+622473+32473+39903(Top 37%)2601(Top 23%)2601(Top 53%)
25.2M25.20 mi0.35 mi10808+322470+32470+39640(Top 36%)2523(Top 22%)2523(Top 52%)
Finish26.22 mi1.02 mi10717+912456+142456+149236(Top 35%)2345(Top 21%)2345(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10057

Females

1870

F18-39

1870

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10540

Females

2077

F18-39

2077

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10057

Females

1870

F18-39

1870

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10232

Females

2017

F18-39

2017

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10112

Females

1948

F18-39

1948

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10748

Females

2361

F18-39

2361

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12094

Females

3232

F18-39

3232

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12623

Females

3643

F18-39

3643

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11674

Females

3225

F18-39

3225

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11945

Females

3381

F18-39

3381

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11847

Females

3425

F18-39

3425

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11129

Females

3153

F18-39

3153

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9903

Females

2601

F18-39

2601

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9640

Females

2523

F18-39

2523

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9236

Females

2345

F18-39

2345

Passing Analysis

Category:
Athletes Passed
1906*
Passed By
1453
Net Change
+453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11170
5K → 10K505162+343#11170#10827
10K → 15K37277+295#10827#10532
15K → 20K19191+100#10532#10432
20K → Half4118+23#10432#10409
Half → 25K129158-29#10409#10438
25K → 30K105342-237#10438#10675
30K → 20M51*161-110#10675#10785
20M → 21M58114-56#10785#10841
21M → 35K3464-30#10841#10871
35K → 23M77113-36#10871#10907
23M → 24M7267+5#10907#10902
24M → 40K9331+62#10902#10840
40K → 25.2M5018+32#10840#10808
25.2M → Finish12837+91#10808#10717
TOTALS1906*1453+453

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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