Boston Marathon logo
BOSTON MARATHON 2023

Elizabeth Chauhan

Bib: 16078•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #10522
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
46:56
Rank: #10512 (+10)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:10:27
Rank: #10580 (-68)
10K → 15K
23:31 | 7:34/mi
20K· 12.43 mi
1:34:10
Rank: #10495 (+85)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:39:19
Rank: #10507 (-12)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:57:56
Rank: #10427 (+80)
Half → 25K
18:37 | 7:41/mi
30K· 18.64 mi
2:22:59
Rank: #10530 (-103)
25K → 30K
25:03 | 8:04/mi
20M
2:33:48
Rank: #10482 (+48)
30K → 20M
10:49 | 7:58/mi
21M
2:42:21
Rank: #10472 (+10)
20M → 21M
8:33 | 8:33/mi
35K· 21.75 mi
2:48:18
Rank: #10492 (-20)
21M → 35K
5:57 | 7:57/mi
23M
2:58:28
Rank: #10476 (+16)
35K → 23M
10:10 | 8:07/mi
24M
3:06:18
Rank: #10445 (+31)
23M → 24M
7:50 | 7:50/mi
40K· 24.85 mi
3:13:11
Rank: #10415 (+30)
24M → 40K
6:53 | 8:03/mi
25.2M
3:16:12
Rank: #10418 (-3)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:24:30
Rank: #10510 (-92)
25.2M → Finish
8:18 | 8:09/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
Time1:39:19
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:45:11
Pace8:01 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5723:367:3623:36
7:36
-
10K
6.21 mi11:37:1746:567:3323:20
7:31
-0:05
15K
9.32 mi12:00:481:10:277:3423:31
7:34
+0:03
20K
12.43 mi12:24:311:34:107:3523:43
7:38
+0:04
Half
13.11 mi12:29:401:39:197:355:09
7:33
-0:05
25K
15.53 mi12:48:171:57:567:3618:37
7:41
+0:08
30K
18.64 mi13:13:202:22:597:4025:03
8:04
+0:23
20M
20.00 mi13:24:092:33:487:4110:49
7:58
-0:06
21M
21.00 mi13:32:422:42:217:448:33
8:33
+0:35
35K
21.75 mi13:38:392:48:187:445:57
7:57
-0:36
23M
23.00 mi13:48:492:58:287:4610:10
8:07
+0:10
24M
24.00 mi13:56:393:06:187:467:50
7:50
-0:17
40K
24.85 mi14:03:323:13:117:466:53
8:03
+0:13
25.2M
25.20 mi14:06:333:16:127:473:01
8:45
+0:42
Finish
26.22 mi14:14:513:24:307:488:18
8:09
-0:36

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

7:31 /mi

Average Pace

7:48 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:56

94% of race

Time at Steady Pace

11:34

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:13:5723:367:3623:36
7:36
#10522
10K
6.21 mi11:37:1746:567:3323:20
7:31
#10512
15K
9.32 mi12:00:481:10:277:3423:31
7:34
#10580
20K
12.43 mi12:24:311:34:107:3523:43
7:38
#10495
Half
13.11 mi12:29:401:39:197:355:09
7:33
#10507
25K
15.53 mi12:48:171:57:567:3618:37
7:41
#10427
30K
18.64 mi13:13:202:22:597:4025:03
8:04
#10530
20M
20.00 mi13:24:092:33:487:4110:49
7:58
#10482
21M
21.00 mi13:32:422:42:217:448:33
8:33
#10472
35K
21.75 mi13:38:392:48:187:445:57
7:57
#10492
23M
23.00 mi13:48:492:58:287:4610:10
8:07
#10476
24M
24.00 mi13:56:393:06:187:467:50
7:50
#10445
40K
24.85 mi14:03:323:13:117:466:53
8:03
#10415
25.2M
25.20 mi14:06:333:16:127:473:01
8:45
#10418
Finish
26.22 mi14:14:513:24:307:488:18
8:09
#10510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105222096209610772(Top 40%)2219(Top 19%)2219(Top 45%)
10K6.21 mi3.10 mi10512+102080+162080+1610538(Top 40%)2075(Top 18%)2075(Top 42%)
15K9.32 mi3.11 mi10580-682111-312111-3110772(Top 40%)2219(Top 19%)2219(Top 45%)
20K12.43 mi3.11 mi10495+852069+422069+4210376(Top 39%)2085(Top 18%)2085(Top 43%)
Half13.11 mi0.68 mi10507-122073-42073-410679(Top 40%)2217(Top 19%)2217(Top 45%)
25K15.53 mi2.42 mi10427+802059+142059+1410153(Top 38%)2065(Top 18%)2065(Top 42%)
30K18.64 mi3.11 mi10530-1032169-1102169-11011388(Top 43%)2839(Top 25%)2839(Top 58%)
20M20.00 mi1.36 mi10482+482162+72162+79999(Top 38%)2230(Top 20%)2230(Top 46%)
21M21.00 mi1.00 mi10472+102191-292191-2910778(Top 40%)2757(Top 24%)2757(Top 56%)
35K21.75 mi0.75 mi10492-202212-212212-2111790(Top 44%)3297(Top 29%)3297(Top 68%)
23M23.00 mi1.25 mi10476+162236-242236-2410621(Top 40%)2824(Top 25%)2824(Top 58%)
24M24.00 mi1.00 mi10445+312253-172253-1710054(Top 38%)2623(Top 23%)2623(Top 54%)
40K24.85 mi0.85 mi10415+302266-132266-1310389(Top 39%)2831(Top 25%)2831(Top 58%)
25.2M25.20 mi0.35 mi10418-32282-162282-1611056(Top 42%)3214(Top 28%)3214(Top 66%)
Finish26.22 mi1.02 mi10510-922351-692351-6913073(Top 49%)4242(Top 37%)4242(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10772

Females

2219

F18-39

2219

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10538

Females

2075

F18-39

2075

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10772

Females

2219

F18-39

2219

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10376

Females

2085

F18-39

2085

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10679

Females

2217

F18-39

2217

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10153

Females

2065

F18-39

2065

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11388

Females

2839

F18-39

2839

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

9999

Females

2230

F18-39

2230

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10778

Females

2757

F18-39

2757

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11790

Females

3297

F18-39

3297

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10621

Females

2824

F18-39

2824

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10054

Females

2623

F18-39

2623

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10389

Females

2831

F18-39

2831

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11056

Females

3214

F18-39

3214

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13073

Females

4242

F18-39

4242

Passing Analysis

Category:
Athletes Passed
1533*
Passed By
1521
Net Change
+12
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10522
5K → 10K282*272+10#10522#10512
10K → 15K164232-68#10512#10580
15K → 20K195110+85#10580#10495
20K → Half3042-12#10495#10507
Half → 25K16585+80#10507#10427
25K → 30K133236-103#10427#10530
30K → 20M100*52+48#10530#10482
20M → 21M9383+10#10482#10472
21M → 35K3959-20#10472#10492
35K → 23M8468+16#10492#10476
23M → 24M8453+31#10476#10445
24M → 40K8050+30#10445#10415
40K → 25.2M3538-3#10415#10418
25.2M → Finish49141-92#10418#10510
TOTALS1533*1521+12

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

📊

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