Boston Marathon logo
BOSTON MARATHON 2023

Jessica Crooker

Bib: 25892•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
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
26:38
Rank: #18063
Start → 5K
26:38 | 8:34/mi
10K· 6.21 mi
52:53
Rank: #17969 (+94)
5K → 10K
26:15 | 8:27/mi
15K· 9.32 mi
1:18:57
Rank: #17664 (+305)
10K → 15K
26:04 | 8:23/mi
20K· 12.43 mi
1:45:27
Rank: #17463 (+201)
15K → 20K
26:30 | 8:32/mi
Half· 13.11 mi
1:51:16
Rank: #17476 (-13)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:12:47
Rank: #17617 (-141)
Half → 25K
21:31 | 8:52/mi
30K· 18.64 mi
2:41:46
Rank: #17841 (-224)
25K → 30K
28:59 | 9:20/mi
20M
2:54:58
Rank: #18025 (-184)
30K → 20M
13:12 | 9:43/mi
21M
3:05:56
Rank: #18307 (-282)
20M → 21M
10:58 | 10:58/mi
35K· 21.75 mi
3:12:49
Rank: #18311 (-4)
21M → 35K
6:53 | 9:12/mi
23M
3:24:47
Rank: #18323 (-12)
35K → 23M
11:58 | 9:33/mi
24M
3:34:12
Rank: #18375 (-52)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:42:21
Rank: #18382 (-7)
24M → 40K
8:09 | 9:32/mi
25.2M
3:45:48
Rank: #18367 (+15)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:54:55
Rank: #18359 (+8)
25.2M → Finish
9:07 | 8:57/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:16
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:03:39
Pace9:26 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:0626:388:3426:38
8:34
-
10K
6.21 mi12:08:2152:538:3126:15
8:27
-0:07
15K
9.32 mi12:34:251:18:578:2826:04
8:23
-0:04
20K
12.43 mi13:00:551:45:278:2926:30
8:32
+0:09
Half
13.11 mi13:06:441:51:168:295:49
8:32
0:00
25K
15.53 mi13:28:152:12:478:3321:31
8:52
+0:20
30K
18.64 mi13:57:142:41:468:4128:59
9:20
+0:28
20M
20.00 mi14:10:262:54:588:4513:12
9:43
+0:23
21M
21.00 mi14:21:243:05:568:5110:58
10:58
+1:15
35K
21.75 mi14:28:173:12:498:526:53
9:12
-1:46
23M
23.00 mi14:40:153:24:478:5411:58
9:33
+0:21
24M
24.00 mi14:49:403:34:128:569:25
9:25
-0:08
40K
24.85 mi14:57:493:42:218:578:09
9:32
+0:07
25.2M
25.20 mi15:01:163:45:488:583:27
10:00
+0:28
Finish
26.22 mi15:10:233:54:558:589:07
8:57
-1:03

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

8:23 /mi

Average Pace

8:58 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:16

47% of race

Time at Steady Pace

1:24:04

36% of race

Time at Slower Pace

39:35

17% of race

Average Pace: 8:58 /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 mi11:42:0626:388:3426:38
8:34
#18063
10K
6.21 mi12:08:2152:538:3126:15
8:27
#17969
15K
9.32 mi12:34:251:18:578:2826:04
8:23
#17664
20K
12.43 mi13:00:551:45:278:2926:30
8:32
#17463
Half
13.11 mi13:06:441:51:168:295:49
8:32
#17476
25K
15.53 mi13:28:152:12:478:3321:31
8:52
#17617
30K
18.64 mi13:57:142:41:468:4128:59
9:20
#17841
20M
20.00 mi14:10:262:54:588:4513:12
9:43
#18025
21M
21.00 mi14:21:243:05:568:5110:58
10:58
#18307
35K
21.75 mi14:28:173:12:498:526:53
9:12
#18311
23M
23.00 mi14:40:153:24:478:5411:58
9:33
#18323
24M
24.00 mi14:49:403:34:128:569:25
9:25
#18375
40K
24.85 mi14:57:493:42:218:578:09
9:32
#18382
25.2M
25.20 mi15:01:163:45:488:583:27
10:00
#18367
Finish
26.22 mi15:10:233:54:558:589:07
8:57
#18359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi180636598659817097(Top 64%)5985(Top 52%)5985(Top 319%)
10K6.21 mi3.10 mi17969+946517+816517+8117934(Top 67%)6442(Top 56%)6442(Top 343%)
15K9.32 mi3.11 mi17664+3056315+2026315+20217097(Top 64%)5985(Top 52%)5985(Top 319%)
20K12.43 mi3.11 mi17463+2016196+1196196+11917064(Top 64%)5967(Top 52%)5967(Top 318%)
Half13.11 mi0.68 mi17476-136209-136209-1317903(Top 67%)6432(Top 56%)6432(Top 342%)
25K15.53 mi2.42 mi17617-1416306-976306-9718342(Top 69%)6751(Top 59%)6751(Top 359%)
30K18.64 mi3.11 mi17841-2246465-1596465-15918752(Top 70%)7058(Top 62%)7058(Top 376%)
20M20.00 mi1.36 mi18025-1846602-1376602-13719592(Top 74%)7628(Top 67%)7628(Top 406%)
21M21.00 mi1.00 mi18307-2826778-1766778-17620760(Top 78%)8329(Top 73%)8329(Top 444%)
35K21.75 mi0.75 mi18311-46783-56783-518754(Top 70%)7244(Top 63%)7244(Top 386%)
23M23.00 mi1.25 mi18323-126805-226805-2218559(Top 70%)7158(Top 63%)7158(Top 381%)
24M24.00 mi1.00 mi18375-526842-376842-3718919(Top 71%)7398(Top 65%)7398(Top 394%)
40K24.85 mi0.85 mi18382-76859-176859-1718455(Top 69%)7187(Top 63%)7187(Top 383%)
25.2M25.20 mi0.35 mi18367+156851+86851+817453(Top 66%)6686(Top 59%)6686(Top 356%)
Finish26.22 mi1.02 mi18359+86855-46855-417733(Top 67%)6777(Top 59%)6777(Top 361%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17097

Females

5985

F40-44

5985

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17934

Females

6442

F40-44

6442

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17097

Females

5985

F40-44

5985

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17064

Females

5967

F40-44

5967

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17903

Females

6432

F40-44

6432

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

18342

Females

6751

F40-44

6751

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18752

Females

7058

F40-44

7058

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19592

Females

7628

F40-44

7628

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20760

Females

8329

F40-44

8329

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18754

Females

7244

F40-44

7244

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18559

Females

7158

F40-44

7158

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18919

Females

7398

F40-44

7398

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18455

Females

7187

F40-44

7187

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17453

Females

6686

F40-44

6686

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17733

Females

6777

F40-44

6777

Passing Analysis

Category:
Athletes Passed
1606
Passed By
1902
Net Change
-296
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18063
5K → 10K363269+94#18063#17969
10K → 15K37570+305#17969#17664
15K → 20K28281+201#17664#17463
20K → Half2639-13#17463#17476
Half → 25K78219-141#17476#17617
25K → 30K117341-224#17617#17841
30K → 20M44228-184#17841#18025
20M → 21M34316-282#18025#18307
21M → 35K4448-4#18307#18311
35K → 23M7587-12#18311#18323
23M → 24M3688-52#18323#18375
24M → 40K5158-7#18375#18382
40K → 25.2M2712+15#18382#18367
25.2M → Finish5446+8#18367#18359
TOTALS16061902-296
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing