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BOSTON MARATHON 2023

Jessica Marchessault

Bib: 12721•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:45/mi
24:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:11:54
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:35:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:40:58
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:59:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:22:38
↑ 181↓ 1480.2%
20M
7:19/mi
2:32:35
↑ 64↓ 500.2%
21M
7:27/mi
2:40:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:45:24
↑ 17↓ 861.7%
23M
7:19/mi
2:54:34
↑ 23↓ 630.6%
24M
7:12/mi
3:01:46
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:08:04
↓ 200.3%
25.2M
7:58/mi
3:10:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:08/mi
3:18:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:58
Pace7:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:07
Pace7:25 /mi
📊Negative Split: 3.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4724:067:4524:06
7:45
-
10K
6.21 mi11:16:4448:037:4423:57
7:43
-0:02
15K
9.32 mi11:40:351:11:547:4323:51
7:41
-0:02
20K
12.43 mi12:04:351:35:547:4324:00
7:43
+0:02
Half
13.11 mi12:09:391:40:587:425:04
7:26
-0:17
25K
15.53 mi12:28:151:59:347:4218:36
7:40
+0:14
30K
18.64 mi12:51:192:22:387:3923:04
7:25
-0:15
20M
20.00 mi13:01:162:32:357:389:57
7:19
-0:06
21M
21.00 mi13:08:432:40:027:377:27
7:27
+0:08
35K
21.75 mi13:14:052:45:247:365:22
7:10
-0:17
23M
23.00 mi13:23:152:54:347:359:10
7:19
+0:09
24M
24.00 mi13:30:273:01:467:347:12
7:12
-0:07
40K
24.85 mi13:36:453:08:047:346:18
7:22
+0:10
25.2M
25.20 mi13:39:303:10:497:342:45
7:58
+0:36
Finish
26.22 mi13:46:463:18:057:347:16
7:08
-0:50

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

7:08 /mi

Average Pace

7:34 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:20

99% of race

Time at Steady Pace

2:45

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:52:4724:067:4524:06
7:45
#11982
10K
6.21 mi11:16:4448:037:4423:57
7:43
#12122
15K
9.32 mi11:40:351:11:547:4323:51
7:41
#11901
20K
12.43 mi12:04:351:35:547:4324:00
7:43
#11661
Half
13.11 mi12:09:391:40:587:425:04
7:26
#11548
25K
15.53 mi12:28:151:59:347:4218:36
7:40
#11273
30K
18.64 mi12:51:192:22:387:3923:04
7:25
#10371
20M
20.00 mi13:01:162:32:357:389:57
7:19
#9974
21M
21.00 mi13:08:432:40:027:377:27
7:27
#9599
35K
21.75 mi13:14:052:45:247:365:22
7:10
#9454
23M
23.00 mi13:23:152:54:347:359:10
7:19
#9155
24M
24.00 mi13:30:273:01:467:347:12
7:12
#8971
40K
24.85 mi13:36:453:08:047:346:18
7:22
#8835
25.2M
25.20 mi13:39:303:10:497:342:45
7:58
#8764
Finish
26.22 mi13:46:463:18:057:347:16
7:08
#8633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119822854285411644(Top 44%)2695(Top 24%)2695(Top 55%)
10K6.21 mi3.10 mi12122-1402926-722926-7212336(Top 46%)3050(Top 27%)3050(Top 62%)
15K9.32 mi3.11 mi11901+2212833+932833+9311644(Top 44%)2695(Top 24%)2695(Top 55%)
20K12.43 mi3.11 mi11661+2402716+1172716+11711110(Top 42%)2459(Top 22%)2459(Top 50%)
Half13.11 mi0.68 mi11548+1132650+662650+669658(Top 36%)1729(Top 15%)1729(Top 35%)
25K15.53 mi2.42 mi11273+2752515+1352515+13510088(Top 38%)2028(Top 18%)2028(Top 42%)
30K18.64 mi3.11 mi10371+9022087+4282087+4286755(Top 25%)852(Top 7%)852(Top 17%)
20M20.00 mi1.36 mi9974+3971907+1801907+1805796(Top 22%)658(Top 6%)658(Top 13%)
21M21.00 mi1.00 mi9599+3751764+1431764+1434373(Top 16%)379(Top 3%)379(Top 8%)
35K21.75 mi0.75 mi9454+1451730+341730+346424(Top 24%)903(Top 8%)903(Top 18%)
23M23.00 mi1.25 mi9155+2991639+911639+915456(Top 20%)655(Top 6%)655(Top 13%)
24M24.00 mi1.00 mi8971+1841583+561583+565785(Top 22%)826(Top 7%)826(Top 17%)
40K24.85 mi0.85 mi8835+1361556+271556+275931(Top 22%)962(Top 8%)962(Top 20%)
25.2M25.20 mi0.35 mi8764+711536+201536+206434(Top 24%)1218(Top 11%)1218(Top 25%)
Finish26.22 mi1.02 mi8633+1311496+401496+406025(Top 23%)1072(Top 9%)1072(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11644

Females

2695

F18-39

2695

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12336

Females

3050

F18-39

3050

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11644

Females

2695

F18-39

2695

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11110

Females

2459

F18-39

2459

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9658

Females

1729

F18-39

1729

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10088

Females

2028

F18-39

2028

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6755

Females

852

F18-39

852

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5796

Females

658

F18-39

658

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4373

Females

379

F18-39

379

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6424

Females

903

F18-39

903

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5456

Females

655

F18-39

655

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5785

Females

826

F18-39

826

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5931

Females

962

F18-39

962

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6434

Females

1218

F18-39

1218

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6025

Females

1072

F18-39

1072

Passing Analysis

Category:
Athletes Passed
3933*
Passed By
584
Net Change
+3349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11982
5K → 10K229369-140#11982#12122
10K → 15K324103+221#12122#11901
15K → 20K30666+240#11901#11661
20K → Half1130+113#11661#11548
Half → 25K29318+275#11548#11273
25K → 30K9020+902#11273#10371
30K → 20M397*0+397#10371#9974
20M → 21M3761+375#9974#9599
21M → 35K1505+145#9599#9454
35K → 23M3001+299#9454#9155
23M → 24M1895+184#9155#8971
24M → 40K1393+136#8971#8835
40K → 25.2M754+71#8835#8764
25.2M → Finish1409+131#8764#8633
TOTALS3933*584+3349

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

📊

Passing Visuals

Category:
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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