Boston Marathon logo
BOSTON MARATHON 2023

Jessica Chapman

Bib: 19237•F

VT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 42%
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:09
Rank: #17019
Start → 5K
26:09 | 8:25/mi
10K· 6.21 mi
51:28
Rank: #16388 (+631)
5K → 10K
25:19 | 8:09/mi
15K· 9.32 mi
1:17:03
Rank: #16289 (+99)
10K → 15K
25:35 | 8:14/mi
20K· 12.43 mi
1:43:26
Rank: #16451 (-162)
15K → 20K
26:23 | 8:30/mi
Half· 13.11 mi
1:49:04
Rank: #16436 (+15)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:10:01
Rank: #16539 (-103)
Half → 25K
20:57 | 8:38/mi
30K· 18.64 mi
2:37:56
Rank: #16614 (-75)
25K → 30K
27:55 | 8:59/mi
20M
2:50:12
Rank: #16599 (+15)
30K → 20M
12:16 | 9:02/mi
21M
3:00:05
Rank: #16667 (-68)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:06:36
Rank: #16642 (+25)
21M → 35K
6:31 | 8:43/mi
23M
3:17:54
Rank: #16607 (+35)
35K → 23M
11:18 | 9:02/mi
24M
3:26:52
Rank: #16618 (-11)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:34:36
Rank: #16609 (+9)
24M → 40K
7:44 | 9:03/mi
25.2M
3:38:04
Rank: #16623 (-14)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:47:24
Rank: #16725 (-102)
25.2M → Finish
9:20 | 9:10/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
Time1:49:04
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:58:20
Pace9:02 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5226:098:2526:09
8:25
-
10K
6.21 mi11:43:1151:288:1725:19
8:09
-0:16
15K
9.32 mi12:08:461:17:038:1625:35
8:14
+0:05
20K
12.43 mi12:35:091:43:268:1926:23
8:30
+0:16
Half
13.11 mi12:40:471:49:048:195:38
8:15
-0:15
25K
15.53 mi13:01:442:10:018:2220:57
8:38
+0:23
30K
18.64 mi13:29:392:37:568:2827:55
8:59
+0:21
20M
20.00 mi13:41:552:50:128:3112:16
9:02
+0:03
21M
21.00 mi13:51:483:00:058:359:53
9:53
+0:51
35K
21.75 mi13:58:193:06:368:356:31
8:43
-1:10
23M
23.00 mi14:09:373:17:548:3611:18
9:02
+0:19
24M
24.00 mi14:18:353:26:528:378:58
8:58
-0:04
40K
24.85 mi14:26:193:34:368:387:44
9:03
+0:05
25.2M
25.20 mi14:29:473:38:048:393:28
10:03
+1:00
Finish
26.22 mi14:39:073:47:248:419:20
9:10
-0:53

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

8:09 /mi

Average Pace

8:41 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:01

57% of race

Time at Steady Pace

1:24:02

37% of race

Time at Slower Pace

13:21

6% of race

Average Pace: 8:40 /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 mi11:17:5226:098:2526:09
8:25
#17019
10K
6.21 mi11:43:1151:288:1725:19
8:09
#16388
15K
9.32 mi12:08:461:17:038:1625:35
8:14
#16289
20K
12.43 mi12:35:091:43:268:1926:23
8:30
#16451
Half
13.11 mi12:40:471:49:048:195:38
8:15
#16436
25K
15.53 mi13:01:442:10:018:2220:57
8:38
#16539
30K
18.64 mi13:29:392:37:568:2827:55
8:59
#16614
20M
20.00 mi13:41:552:50:128:3112:16
9:02
#16599
21M
21.00 mi13:51:483:00:058:359:53
9:53
#16667
35K
21.75 mi13:58:193:06:368:356:31
8:43
#16642
23M
23.00 mi14:09:373:17:548:3611:18
9:02
#16607
24M
24.00 mi14:18:353:26:528:378:58
8:58
#16618
40K
24.85 mi14:26:193:34:368:387:44
9:03
#16609
25.2M
25.20 mi14:29:473:38:048:393:28
10:03
#16623
Finish
26.22 mi14:39:073:47:248:419:20
9:10
#16725
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi170195941594116117(Top 61%)5363(Top 47%)5363(Top 295%)
10K6.21 mi3.10 mi16388+6315519+4225519+42215910(Top 60%)5219(Top 46%)5219(Top 287%)
15K9.32 mi3.11 mi16289+995459+605459+6016117(Top 61%)5363(Top 47%)5363(Top 295%)
20K12.43 mi3.11 mi16451-1625576-1175576-11716806(Top 63%)5824(Top 51%)5824(Top 321%)
Half13.11 mi0.68 mi16436+155578-25578-216272(Top 61%)5473(Top 48%)5473(Top 301%)
25K15.53 mi2.42 mi16539-1035660-825660-8217051(Top 64%)6035(Top 53%)6035(Top 332%)
30K18.64 mi3.11 mi16614-755758-985758-9817094(Top 64%)6122(Top 54%)6122(Top 337%)
20M20.00 mi1.36 mi16599+155756+25756+216698(Top 63%)5971(Top 52%)5971(Top 329%)
21M21.00 mi1.00 mi16667-685799-435799-4317594(Top 66%)6517(Top 57%)6517(Top 359%)
35K21.75 mi0.75 mi16642+255797+25797+216488(Top 62%)5987(Top 52%)5987(Top 329%)
23M23.00 mi1.25 mi16607+355794+35794+316191(Top 61%)5847(Top 51%)5847(Top 322%)
24M24.00 mi1.00 mi16618-115816-225816-2217089(Top 64%)6406(Top 56%)6406(Top 353%)
40K24.85 mi0.85 mi16609+95834-185834-1816416(Top 62%)6089(Top 53%)6089(Top 335%)
25.2M25.20 mi0.35 mi16623-145845-115845-1117623(Top 66%)6750(Top 59%)6750(Top 371%)
Finish26.22 mi1.02 mi16725-1025917-725917-7218739(Top 70%)7295(Top 64%)7295(Top 401%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16117

Females

5363

F45-49

5363

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15910

Females

5219

F45-49

5219

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16117

Females

5363

F45-49

5363

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16806

Females

5824

F45-49

5824

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16272

Females

5473

F45-49

5473

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

17051

Females

6035

F45-49

6035

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

17094

Females

6122

F45-49

6122

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16698

Females

5971

F45-49

5971

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17594

Females

6517

F45-49

6517

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16488

Females

5987

F45-49

5987

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16191

Females

5847

F45-49

5847

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17089

Females

6406

F45-49

6406

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16416

Females

6089

F45-49

6089

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17623

Females

6750

F45-49

6750

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

18739

Females

7295

F45-49

7295

Passing Analysis

Category:
Athletes Passed
1870
Passed By
1576
Net Change
+294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17019
5K → 10K72493+631#17019#16388
10K → 15K244145+99#16388#16289
15K → 20K106268-162#16289#16451
20K → Half4126+15#16451#16436
Half → 25K101204-103#16436#16539
25K → 30K156231-75#16539#16614
30K → 20M9277+15#16614#16599
20M → 21M62130-68#16599#16667
21M → 35K6540+25#16667#16642
35K → 23M9257+35#16642#16607
23M → 24M6475-11#16607#16618
24M → 40K6556+9#16618#16609
40K → 25.2M2539-14#16609#16623
25.2M → Finish33135-102#16623#16725
TOTALS18701576+294
📊

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