Boston Marathon logo
BOSTON MARATHON 2023

Valerie Lemmons

Bib: 16786•F

AR

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:25
Rank: #12935
Start → 5K
24:25 | 7:52/mi
10K· 6.21 mi
49:02
Rank: #13524 (-589)
5K → 10K
24:37 | 7:55/mi
15K· 9.32 mi
1:13:47
Rank: #13718 (-194)
10K → 15K
24:45 | 7:58/mi
20K· 12.43 mi
1:38:46
Rank: #13685 (+33)
15K → 20K
24:59 | 8:02/mi
Half· 13.11 mi
1:44:18
Rank: #13759 (-74)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:04:06
Rank: #13782 (-23)
Half → 25K
19:48 | 8:10/mi
30K· 18.64 mi
2:30:08
Rank: #13719 (+63)
25K → 30K
26:02 | 8:23/mi
20M
2:42:19
Rank: #13965 (-246)
30K → 20M
12:11 | 8:58/mi
21M
2:53:05
Rank: #14490 (-525)
20M → 21M
10:46 | 10:46/mi
35K· 21.75 mi
2:59:54
Rank: #14661 (-171)
21M → 35K
6:49 | 9:07/mi
23M
3:12:43
Rank: #15157 (-496)
35K → 23M
12:49 | 10:14/mi
24M
3:23:04
Rank: #15613 (-456)
23M → 24M
10:21 | 10:21/mi
40K· 24.85 mi
3:31:41
Rank: #15873 (-260)
24M → 40K
8:37 | 10:05/mi
25.2M
3:35:17
Rank: #15939 (-66)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:44:35
Rank: #16071 (-132)
25.2M → Finish
9:18 | 9:08/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
Time1:44:18
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time2:00:17
Pace9:11 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3924:257:5224:25
7:52
-
10K
6.21 mi11:39:1649:027:5324:37
7:55
+0:03
15K
9.32 mi12:04:011:13:477:5524:45
7:58
+0:03
20K
12.43 mi12:29:001:38:467:5724:59
8:02
+0:04
Half
13.11 mi12:34:321:44:187:575:32
8:07
+0:05
25K
15.53 mi12:54:202:04:067:5919:48
8:10
+0:03
30K
18.64 mi13:20:222:30:088:0326:02
8:23
+0:13
20M
20.00 mi13:32:332:42:198:0712:11
8:58
+0:35
21M
21.00 mi13:43:192:53:058:1510:46
10:46
+1:48
35K
21.75 mi13:50:082:59:548:166:49
9:07
-1:39
23M
23.00 mi14:02:573:12:438:2312:49
10:14
+1:07
24M
24.00 mi14:13:183:23:048:2810:21
10:21
+0:07
40K
24.85 mi14:21:553:31:418:318:37
10:05
-0:16
25.2M
25.20 mi14:25:313:35:178:333:36
10:26
+0:21
Finish
26.22 mi14:34:493:44:358:349:18
9:08
-1:18

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

7:52 /mi

Average Pace

8:34 /mi

Slowest Pace

10:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:08

67% of race

Time at Steady Pace

28:18

13% of race

Time at Slower Pace

46:09

21% of race

Average Pace: 8:34 /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 mi11:14:3924:257:5224:25
7:52
#12935
10K
6.21 mi11:39:1649:027:5324:37
7:55
#13524
15K
9.32 mi12:04:011:13:477:5524:45
7:58
#13718
20K
12.43 mi12:29:001:38:467:5724:59
8:02
#13685
Half
13.11 mi12:34:321:44:187:575:32
8:07
#13759
25K
15.53 mi12:54:202:04:067:5919:48
8:10
#13782
30K
18.64 mi13:20:222:30:088:0326:02
8:23
#13719
20M
20.00 mi13:32:332:42:198:0712:11
8:58
#13965
21M
21.00 mi13:43:192:53:058:1510:46
10:46
#14490
35K
21.75 mi13:50:082:59:548:166:49
9:07
#14661
23M
23.00 mi14:02:573:12:438:2312:49
10:14
#15157
24M
24.00 mi14:13:183:23:048:2810:21
10:21
#15613
40K
24.85 mi14:21:553:31:418:318:37
10:05
#15873
25.2M
25.20 mi14:25:313:35:178:333:36
10:26
#15939
Finish
26.22 mi14:34:493:44:358:349:18
9:08
#16071
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi129353406340614139(Top 53%)4175(Top 37%)4175(Top 85%)
10K6.21 mi3.10 mi13524-5893753-3473753-34714211(Top 53%)4189(Top 37%)4189(Top 86%)
15K9.32 mi3.11 mi13718-1943894-1413894-14114139(Top 53%)4175(Top 37%)4175(Top 85%)
20K12.43 mi3.11 mi13685+333900-63900-613784(Top 52%)3988(Top 35%)3988(Top 82%)
Half13.11 mi0.68 mi13759-743936-363936-3615275(Top 57%)4860(Top 43%)4860(Top 100%)
25K15.53 mi2.42 mi13782-233979-433979-4314026(Top 53%)4246(Top 37%)4246(Top 87%)
30K18.64 mi3.11 mi13719+633972+73972+713576(Top 51%)4079(Top 36%)4079(Top 84%)
20M20.00 mi1.36 mi13965-2464144-1724144-17216361(Top 61%)5786(Top 51%)5786(Top 118%)
21M21.00 mi1.00 mi14490-5254486-3424486-34220297(Top 76%)8085(Top 71%)8085(Top 166%)
35K21.75 mi0.75 mi14661-1714605-1194605-11918390(Top 69%)7040(Top 62%)7040(Top 144%)
23M23.00 mi1.25 mi15157-4964935-3304935-33020675(Top 78%)8329(Top 73%)8329(Top 171%)
24M24.00 mi1.00 mi15613-4565250-3155250-31521669(Top 81%)8923(Top 78%)8923(Top 183%)
40K24.85 mi0.85 mi15873-2605408-1585408-15820182(Top 76%)8151(Top 71%)8151(Top 167%)
25.2M25.20 mi0.35 mi15939-665451-435451-4318910(Top 71%)7451(Top 65%)7451(Top 153%)
Finish26.22 mi1.02 mi16071-1325527-765527-7618576(Top 70%)7206(Top 63%)7206(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14139

Females

4175

F18-39

4175

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14211

Females

4189

F18-39

4189

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14139

Females

4175

F18-39

4175

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13784

Females

3988

F18-39

3988

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15275

Females

4860

F18-39

4860

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14026

Females

4246

F18-39

4246

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13576

Females

4079

F18-39

4079

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16361

Females

5786

F18-39

5786

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20297

Females

8085

F18-39

8085

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18390

Females

7040

F18-39

7040

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20675

Females

8329

F18-39

8329

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21669

Females

8923

F18-39

8923

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20182

Females

8151

F18-39

8151

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18910

Females

7451

F18-39

7451

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

18576

Females

7206

F18-39

7206

Passing Analysis

Category:
Athletes Passed
909
Passed By
4045
Net Change
-3136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12935
5K → 10K105694-589#12935#13524
10K → 15K120314-194#13524#13718
15K → 20K186153+33#13718#13685
20K → Half1387-74#13685#13759
Half → 25K123146-23#13759#13782
25K → 30K215152+63#13782#13719
30K → 20M43289-246#13719#13965
20M → 21M12537-525#13965#14490
21M → 35K11182-171#14490#14661
35K → 23M11507-496#14661#15157
23M → 24M16472-456#15157#15613
24M → 40K17277-260#15613#15873
40K → 25.2M1480-66#15873#15939
25.2M → Finish23155-132#15939#16071
TOTALS9094045-3136
📊

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