Boston Marathon logo
BOSTON MARATHON 2023

Jenny Chavez

Bib: 19944•F

IL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
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
26:49
Rank: #18434
Start → 5K
26:49 | 8:38/mi
10K· 6.21 mi
53:22
Rank: #18466 (-32)
5K → 10K
26:33 | 8:33/mi
15K· 9.32 mi
1:20:14
Rank: #18525 (-59)
10K → 15K
26:52 | 8:39/mi
20K· 12.43 mi
1:47:06
Rank: #18314 (+211)
15K → 20K
26:52 | 8:39/mi
Half· 13.11 mi
1:52:55
Rank: #18289 (+25)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:13:51
Rank: #18056 (+233)
Half → 25K
20:56 | 8:38/mi
30K· 18.64 mi
2:41:59
Rank: #17917 (+139)
25K → 30K
28:08 | 9:03/mi
20M
2:54:14
Rank: #17790 (+127)
30K → 20M
12:15 | 9:01/mi
21M
3:03:36
Rank: #17651 (+139)
20M → 21M
9:22 | 9:22/mi
35K· 21.75 mi
3:10:16
Rank: #17631 (+20)
21M → 35K
6:40 | 8:55/mi
23M
3:21:30
Rank: #17516 (+115)
35K → 23M
11:14 | 8:58/mi
24M
3:30:20
Rank: #17478 (+38)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:37:53
Rank: #17400 (+78)
24M → 40K
7:33 | 8:50/mi
25.2M
3:41:06
Rank: #17345 (+55)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:49:41
Rank: #17279 (+66)
25.2M → Finish
8:35 | 8:25/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
Time1:52:55
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:56:46
Pace8:54 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0926:498:3826:49
8:38
-
10K
6.21 mi11:45:4253:228:3526:33
8:33
-0:05
15K
9.32 mi12:12:341:20:148:3626:52
8:39
+0:06
20K
12.43 mi12:39:261:47:068:3726:52
8:39
0:00
Half
13.11 mi12:45:151:52:558:375:49
8:32
-0:07
25K
15.53 mi13:06:112:13:518:3720:56
8:38
+0:06
30K
18.64 mi13:34:192:41:598:4128:08
9:03
+0:25
20M
20.00 mi13:46:342:54:148:4312:15
9:01
-0:02
21M
21.00 mi13:55:563:03:368:459:22
9:22
+0:21
35K
21.75 mi14:02:363:10:168:456:40
8:55
-0:27
23M
23.00 mi14:13:503:21:308:4611:14
8:58
+0:03
24M
24.00 mi14:22:403:30:208:468:50
8:50
-0:08
40K
24.85 mi14:30:133:37:538:467:33
8:50
0:00
25.2M
25.20 mi14:33:263:41:068:463:13
9:20
+0:30
Finish
26.22 mi14:42:013:49:418:468:35
8:25
-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

8:25 /mi

Average Pace

8:46 /mi

Slowest Pace

9:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:06

95% of race

Time at Steady Pace

12:35

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:19:0926:498:3826:49
8:38
#18434
10K
6.21 mi11:45:4253:228:3526:33
8:33
#18466
15K
9.32 mi12:12:341:20:148:3626:52
8:39
#18525
20K
12.43 mi12:39:261:47:068:3726:52
8:39
#18314
Half
13.11 mi12:45:151:52:558:375:49
8:32
#18289
25K
15.53 mi13:06:112:13:518:3720:56
8:38
#18056
30K
18.64 mi13:34:192:41:598:4128:08
9:03
#17917
20M
20.00 mi13:46:342:54:148:4312:15
9:01
#17790
21M
21.00 mi13:55:563:03:368:459:22
9:22
#17651
35K
21.75 mi14:02:363:10:168:456:40
8:55
#17631
23M
23.00 mi14:13:503:21:308:4611:14
8:58
#17516
24M
24.00 mi14:22:403:30:208:468:50
8:50
#17478
40K
24.85 mi14:30:133:37:538:467:33
8:50
#17400
25.2M
25.20 mi14:33:263:41:068:463:13
9:20
#17345
Finish
26.22 mi14:42:013:49:418:468:35
8:25
#17279
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi184346835683518716(Top 70%)6933(Top 61%)6933(Top 369%)
10K6.21 mi3.10 mi18466-326806+296806+2918536(Top 70%)6789(Top 59%)6789(Top 362%)
15K9.32 mi3.11 mi18525-596831-256831-2518716(Top 70%)6933(Top 61%)6933(Top 369%)
20K12.43 mi3.11 mi18314+2116699+1326699+13217793(Top 67%)6396(Top 56%)6396(Top 341%)
Half13.11 mi0.68 mi18289+256687+126687+1217877(Top 67%)6406(Top 56%)6406(Top 341%)
25K15.53 mi2.42 mi18056+2336566+1216566+12117021(Top 64%)6021(Top 53%)6021(Top 321%)
30K18.64 mi3.11 mi17917+1396515+516515+5117471(Top 66%)6336(Top 55%)6336(Top 337%)
20M20.00 mi1.36 mi17790+1276453+626453+6216639(Top 63%)5941(Top 52%)5941(Top 316%)
21M21.00 mi1.00 mi17651+1396379+746379+7415356(Top 58%)5264(Top 46%)5264(Top 280%)
35K21.75 mi0.75 mi17631+206384-56384-517519(Top 66%)6561(Top 57%)6561(Top 349%)
23M23.00 mi1.25 mi17516+1156331+536331+5315944(Top 60%)5714(Top 50%)5714(Top 304%)
24M24.00 mi1.00 mi17478+386311+206311+2016416(Top 62%)6036(Top 53%)6036(Top 321%)
40K24.85 mi0.85 mi17400+786281+306281+3015284(Top 57%)5466(Top 48%)5466(Top 291%)
25.2M25.20 mi0.35 mi17345+556262+196262+1914425(Top 54%)4995(Top 44%)4995(Top 266%)
Finish26.22 mi1.02 mi17279+666230+326230+3214921(Top 56%)5222(Top 46%)5222(Top 278%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18716

Females

6933

F40-44

6933

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18536

Females

6789

F40-44

6789

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18716

Females

6933

F40-44

6933

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17793

Females

6396

F40-44

6396

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17877

Females

6406

F40-44

6406

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

17021

Females

6021

F40-44

6021

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17471

Females

6336

F40-44

6336

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16639

Females

5941

F40-44

5941

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15356

Females

5264

F40-44

5264

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17519

Females

6561

F40-44

6561

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15944

Females

5714

F40-44

5714

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16416

Females

6036

F40-44

6036

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15284

Females

5466

F40-44

5466

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14425

Females

4995

F40-44

4995

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14921

Females

5222

F40-44

5222

Passing Analysis

Category:
Athletes Passed
2163
Passed By
1008
Net Change
+1155
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18434
5K → 10K310342-32#18434#18466
10K → 15K157216-59#18466#18525
15K → 20K27766+211#18525#18314
20K → Half4318+25#18314#18289
Half → 25K26128+233#18289#18056
25K → 30K253114+139#18056#17917
30K → 20M16134+127#17917#17790
20M → 21M16021+139#17790#17651
21M → 35K5838+20#17651#17631
35K → 23M14833+115#17631#17516
23M → 24M7739+38#17516#17478
24M → 40K9921+78#17478#17400
40K → 25.2M638+55#17400#17345
25.2M → Finish9630+66#17345#17279
TOTALS21631008+1155
📊

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