Boston Marathon logo
BOSTON MARATHON 2023

Rebecca Leigh

Bib: 17455•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 31%
Masters (Masters Women)
#0 / 6539
Top 18%
Division (F40-44)
#0 / 1878
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
25:28
Rank: #15460
Start → 5K
25:28 | 8:12/mi
10K· 6.21 mi
50:03
Rank: #14780 (+680)
5K → 10K
24:35 | 7:55/mi
15K· 9.32 mi
1:14:55
Rank: #14637 (+143)
10K → 15K
24:52 | 8:00/mi
20K· 12.43 mi
1:40:19
Rank: #14668 (-31)
15K → 20K
25:24 | 8:11/mi
Half· 13.11 mi
1:45:48
Rank: #14649 (+19)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:05:17
Rank: #14378 (+271)
Half → 25K
19:29 | 8:02/mi
30K· 18.64 mi
2:30:42
Rank: #13977 (+401)
25K → 30K
25:25 | 8:11/mi
20M
2:41:48
Rank: #13746 (+231)
30K → 20M
11:06 | 8:10/mi
21M
2:50:25
Rank: #13564 (+182)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:56:17
Rank: #13458 (+106)
21M → 35K
5:52 | 7:51/mi
23M
3:06:25
Rank: #13236 (+222)
35K → 23M
10:08 | 8:06/mi
24M
3:14:17
Rank: #13080 (+156)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:20:58
Rank: #12918 (+162)
24M → 40K
6:41 | 7:49/mi
25.2M
3:23:54
Rank: #12861 (+57)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:31:47
Rank: #12757 (+104)
25.2M → Finish
7:53 | 7:44/mi

Course Map & Elevation

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 Half⚖️ Balanced
Distance13.11 mi
Time1:45:48
Pace8:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:59
Pace8:05 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3325:288:1225:28
8:12
-
10K
6.21 mi11:41:0850:038:0324:35
7:55
-0:17
15K
9.32 mi12:06:001:14:558:0224:52
8:00
+0:05
20K
12.43 mi12:31:241:40:198:0425:24
8:11
+0:11
Half
13.11 mi12:36:531:45:488:045:29
8:02
-0:09
25K
15.53 mi12:56:222:05:178:0419:29
8:02
0:00
30K
18.64 mi13:21:472:30:428:0525:25
8:11
+0:09
20M
20.00 mi13:32:532:41:488:0511:06
8:10
-0:01
21M
21.00 mi13:41:302:50:258:078:37
8:37
+0:27
35K
21.75 mi13:47:222:56:178:065:52
7:51
-0:46
23M
23.00 mi13:57:303:06:258:0610:08
8:06
+0:15
24M
24.00 mi14:05:223:14:178:067:52
7:52
-0:14
40K
24.85 mi14:12:033:20:588:056:41
7:49
-0:03
25.2M
25.20 mi14:14:593:23:548:052:56
8:30
+0:41
Finish
26.22 mi14:22:523:31:478:057:53
7:44
-0:46

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

7:44 /mi

Average Pace

8:05 /mi

Slowest Pace

8:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:23:10

96% of race

Time at Steady Pace

8:37

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:05 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:3325:288:1225:28
8:12
#15460
10K
6.21 mi11:41:0850:038:0324:35
7:55
#14780
15K
9.32 mi12:06:001:14:558:0224:52
8:00
#14637
20K
12.43 mi12:31:241:40:198:0425:24
8:11
#14668
Half
13.11 mi12:36:531:45:488:045:29
8:02
#14649
25K
15.53 mi12:56:222:05:178:0419:29
8:02
#14378
30K
18.64 mi13:21:472:30:428:0525:25
8:11
#13977
20M
20.00 mi13:32:532:41:488:0511:06
8:10
#13746
21M
21.00 mi13:41:302:50:258:078:37
8:37
#13564
35K
21.75 mi13:47:222:56:178:065:52
7:51
#13458
23M
23.00 mi13:57:303:06:258:0610:08
8:06
#13236
24M
24.00 mi14:05:223:14:178:067:52
7:52
#13080
40K
24.85 mi14:12:033:20:588:056:41
7:49
#12918
25.2M
25.20 mi14:14:593:23:548:052:56
8:30
#12861
Finish
26.22 mi14:22:523:31:478:057:53
7:44
#12757
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi154604935493514422(Top 54%)4330(Top 38%)4330(Top 231%)
10K6.21 mi3.10 mi14780+6804511+4244511+42414085(Top 53%)4099(Top 36%)4099(Top 218%)
15K9.32 mi3.11 mi14637+1434435+764435+7614422(Top 54%)4330(Top 38%)4330(Top 231%)
20K12.43 mi3.11 mi14668-314471-364471-3614788(Top 56%)4575(Top 40%)4575(Top 244%)
Half13.11 mi0.68 mi14649+194461+104461+1014674(Top 55%)4470(Top 39%)4470(Top 238%)
25K15.53 mi2.42 mi14378+2714332+1294332+12913040(Top 49%)3647(Top 32%)3647(Top 194%)
30K18.64 mi3.11 mi13977+4014125+2074125+20712213(Top 46%)3310(Top 29%)3310(Top 176%)
20M20.00 mi1.36 mi13746+2314007+1184007+11811503(Top 43%)3009(Top 26%)3009(Top 160%)
21M21.00 mi1.00 mi13564+1823914+933914+9311194(Top 42%)2976(Top 26%)2976(Top 158%)
35K21.75 mi0.75 mi13458+1063861+533861+5311020(Top 41%)2897(Top 25%)2897(Top 154%)
23M23.00 mi1.25 mi13236+2223755+1063755+10610449(Top 39%)2743(Top 24%)2743(Top 146%)
24M24.00 mi1.00 mi13080+1563696+593696+5910326(Top 39%)2758(Top 24%)2758(Top 147%)
40K24.85 mi0.85 mi12918+1623625+713625+718841(Top 33%)2118(Top 19%)2118(Top 113%)
25.2M25.20 mi0.35 mi12861+573599+263599+269683(Top 36%)2566(Top 22%)2566(Top 137%)
Finish26.22 mi1.02 mi12757+1043556+433556+4310248(Top 38%)2825(Top 25%)2825(Top 150%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14422

Females

4330

F40-44

4330

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14085

Females

4099

F40-44

4099

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14422

Females

4330

F40-44

4330

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14788

Females

4575

F40-44

4575

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14674

Females

4470

F40-44

4470

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13040

Females

3647

F40-44

3647

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12213

Females

3310

F40-44

3310

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11503

Females

3009

F40-44

3009

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11194

Females

2976

F40-44

2976

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

11020

Females

2897

F40-44

2897

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10449

Females

2743

F40-44

2743

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10326

Females

2758

F40-44

2758

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8841

Females

2118

F40-44

2118

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9683

Females

2566

F40-44

2566

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10248

Females

2825

F40-44

2825

Passing Analysis

Category:
Athletes Passed
3285
Passed By
582
Net Change
+2703
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15460
5K → 10K76686+680#15460#14780
10K → 15K272129+143#14780#14637
15K → 20K172203-31#14637#14668
20K → Half4122+19#14668#14649
Half → 25K29625+271#14649#14378
25K → 30K43231+401#14378#13977
30K → 20M24110+231#13977#13746
20M → 21M19412+182#13746#13564
21M → 35K11711+106#13564#13458
35K → 23M23614+222#13458#13236
23M → 24M16610+156#13236#13080
24M → 40K1697+162#13080#12918
40K → 25.2M603+57#12918#12861
25.2M → Finish12319+104#12861#12757
TOTALS3285582+2703
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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