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BOSTON MARATHON 2023

Mollie Jacobsen

Bib: 29232•F

OR

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0:00
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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
33:59
Rank: #25595
Start → 5K
33:59 | 10:56/mi
10K· 6.21 mi
1:10:24
Rank: #25957 (-362)
5K → 10K
36:25 | 11:43/mi
15K· 9.32 mi
1:51:33
Rank: #26278 (-321)
10K → 15K
41:09 | 13:15/mi
20K· 12.43 mi
2:34:49
Rank: #26383 (-105)
15K → 20K
43:16 | 13:56/mi
Half· 13.11 mi
2:43:33
Rank: #26384 (-1)
20K → Half
8:44 | 12:48/mi
25K· 15.53 mi
3:17:14
Rank: #26388 (-4)
Half → 25K
33:41 | 13:54/mi
30K· 18.64 mi
4:04:51
Rank: #26458 (-70)
25K → 30K
47:37 | 15:20/mi
20M
4:26:04
Rank: #26475 (-17)
30K → 20M
21:13 | 15:37/mi
21M
4:41:39
Rank: #26475
20M → 21M
15:35 | 15:35/mi
35K· 21.75 mi
4:51:56
Rank: #26472 (+3)
21M → 35K
10:17 | 13:45/mi
23M
5:10:34
Rank: #26469 (+3)
35K → 23M
18:38 | 14:53/mi
24M
5:24:28
Rank: #26458 (+11)
23M → 24M
13:54 | 13:54/mi
40K· 24.85 mi
5:38:13
Rank: #26476 (-18)
24M → 40K
13:45 | 16:05/mi
25.2M
5:44:00
Rank: #26481 (-5)
40K → 25.2M
5:47 | 16:46/mi
Finish· 26.22 mi
5:56:35
Rank: #26465 (+16)
25.2M → Finish
12:35 | 12:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:33
Pace12:29 /mi
2nd Half
Distance13.11 mi
Time3:13:02
Pace14:44 /mi
📊Positive Split: 18.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0833:5910:5633:59
10:56
-
10K
6.21 mi12:28:331:10:2411:2036:25
11:43
+0:47
15K
9.32 mi13:09:421:51:3311:5841:09
13:15
+1:32
20K
12.43 mi13:52:582:34:4912:2743:16
13:56
+0:41
Half
13.11 mi14:01:422:43:3312:298:44
12:48
-1:08
25K
15.53 mi14:35:233:17:1412:4233:41
13:54
+1:06
30K
18.64 mi15:23:004:04:5113:0847:37
15:20
+1:26
20M
20.00 mi15:44:134:26:0413:1821:13
15:37
+0:17
21M
21.00 mi15:59:484:41:3913:2515:35
15:35
-0:02
35K
21.75 mi16:10:054:51:5613:2510:17
13:45
-1:50
23M
23.00 mi16:28:435:10:3413:3018:38
14:53
+1:08
24M
24.00 mi16:42:375:24:2813:3113:54
13:54
-0:59
40K
24.85 mi16:56:225:38:1313:3613:45
16:05
+2:11
25.2M
25.20 mi17:02:095:44:0013:395:47
16:46
+0:41
Finish
26.22 mi17:14:445:56:3513:3712:35
12:21
-4:25

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

10:56 /mi

Average Pace

13:37 /mi

Slowest Pace

16:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:43

26% of race

Time at Steady Pace

2:22:17

40% of race

Time at Slower Pace

2:02:35

34% of race

Average Pace: 13:36 /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 mi11:52:0833:5910:5633:59
10:56
#25595
10K
6.21 mi12:28:331:10:2411:2036:25
11:43
#25957
15K
9.32 mi13:09:421:51:3311:5841:09
13:15
#26278
20K
12.43 mi13:52:582:34:4912:2743:16
13:56
#26383
Half
13.11 mi14:01:422:43:3312:298:44
12:48
#26384
25K
15.53 mi14:35:233:17:1412:4233:41
13:54
#26388
30K
18.64 mi15:23:004:04:5113:0847:37
15:20
#26458
20M
20.00 mi15:44:134:26:0413:1821:13
15:37
#26475
21M
21.00 mi15:59:484:41:3913:2515:35
15:35
#26475
35K
21.75 mi16:10:054:51:5613:2510:17
13:45
#26472
23M
23.00 mi16:28:435:10:3413:3018:38
14:53
#26469
24M
24.00 mi16:42:375:24:2813:3113:54
13:54
#26458
40K
24.85 mi16:56:225:38:1313:3613:45
16:05
#26476
25.2M
25.20 mi17:02:095:44:0013:395:47
16:46
#26481
Finish
26.22 mi17:14:445:56:3513:3712:35
12:21
#26465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25595107861078626539(Top 100%)11386(Top 100%)11386(Top 233%)
10K6.21 mi3.10 mi25957-36211014-22811014-22826106(Top 98%)11109(Top 97%)11109(Top 227%)
15K9.32 mi3.11 mi26278-32111218-20411218-20426539(Top 100%)11386(Top 100%)11386(Top 233%)
20K12.43 mi3.11 mi26383-10511281-6311281-6326514(Top 100%)11363(Top 99%)11363(Top 233%)
Half13.11 mi0.68 mi26384-111279+211279+226286(Top 99%)11236(Top 98%)11236(Top 230%)
25K15.53 mi2.42 mi26388-411281-211281-226299(Top 99%)11243(Top 98%)11243(Top 230%)
30K18.64 mi3.11 mi26458-7011327-4611327-4626502(Top 100%)11362(Top 99%)11362(Top 233%)
20M20.00 mi1.36 mi26475-1711341-1411341-1426444(Top 99%)11341(Top 99%)11341(Top 232%)
21M21.00 mi1.00 mi2647511339+211339+226062(Top 98%)11149(Top 98%)11149(Top 228%)
35K21.75 mi0.75 mi26472+311337+211337+226041(Top 98%)11156(Top 98%)11156(Top 228%)
23M23.00 mi1.25 mi26469+311335+211335+226245(Top 99%)11259(Top 99%)11259(Top 231%)
24M24.00 mi1.00 mi26458+1111331+411331+426031(Top 98%)11176(Top 98%)11176(Top 229%)
40K24.85 mi0.85 mi26476-1811341-1011341-1026427(Top 99%)11348(Top 99%)11348(Top 232%)
25.2M25.20 mi0.35 mi26481-511346-511346-526330(Top 99%)11321(Top 99%)11321(Top 232%)
Finish26.22 mi1.02 mi26465+1611337+911337+925565(Top 96%)10957(Top 96%)10957(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

26539

Females

11386

F18-39

11386

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

26106

Females

11109

F18-39

11109

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

26539

Females

11386

F18-39

11386

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

26514

Females

11363

F18-39

11363

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26286

Females

11236

F18-39

11236

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26299

Females

11243

F18-39

11243

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

26502

Females

11362

F18-39

11362

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26444

Females

11341

F18-39

11341

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26062

Females

11149

F18-39

11149

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26041

Females

11156

F18-39

11156

35K→23M

21.8 - 23.0 mi

Top 99%
×5stories
+23ft-63ft

Overall

26245

Females

11259

F18-39

11259

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26031

Females

11176

F18-39

11176

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26427

Females

11348

F18-39

11348

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26330

Females

11321

F18-39

11321

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25565

Females

10957

F18-39

10957

Passing Analysis

Category:
Athletes Passed
152
Passed By
1022
Net Change
-870
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25595
5K → 10K29391-362#25595#25957
10K → 15K2323-321#25957#26278
15K → 20K12117-105#26278#26383
20K → Half89-1#26383#26384
Half → 25K2731-4#26384#26388
25K → 30K878-70#26388#26458
30K → 20M724-17#26458#26475
20M → 21M660#26475#26475
21M → 35K96+3#26475#26472
35K → 23M96+3#26472#26469
23M → 24M165+11#26469#26458
24M → 40K321-18#26458#26476
40K → 25.2M05-5#26476#26481
25.2M → Finish160+16#26481#26465
TOTALS1521022-870
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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