Boston Marathon logo
BOSTON MARATHON 2023

Melissa Latshaw

Bib: 20182•F

OH

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 32%
Division (F45-49)
#0 / 1817
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16105
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
50:45
Rank: #15607 (+498)
5K → 10K
24:59 | 8:02/mi
15K· 9.32 mi
1:16:03
Rank: #15547 (+60)
10K → 15K
25:18 | 8:09/mi
20K· 12.43 mi
1:42:12
Rank: #15735 (-188)
15K → 20K
26:09 | 8:25/mi
Half· 13.11 mi
1:47:55
Rank: #15802 (-67)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:08:37
Rank: #15896 (-94)
Half → 25K
20:42 | 8:32/mi
30K· 18.64 mi
2:35:59
Rank: #15919 (-23)
25K → 30K
27:22 | 8:49/mi
20M
2:48:03
Rank: #15921 (-2)
30K → 20M
12:04 | 8:53/mi
21M
2:57:17
Rank: #15811 (+110)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
3:03:24
Rank: #15704 (+107)
21M → 35K
6:07 | 8:11/mi
23M
3:14:14
Rank: #15589 (+115)
35K → 23M
10:50 | 8:39/mi
24M
3:22:33
Rank: #15488 (+101)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
3:29:45
Rank: #15387 (+101)
24M → 40K
7:12 | 8:25/mi
25.2M
3:32:42
Rank: #15294 (+93)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:40:52
Rank: #15154 (+140)
25.2M → Finish
8:10 | 8:01/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
Time1:47:55
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:52:57
Pace8:37 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3525:468:1825:46
8:18
-
10K
6.21 mi11:44:3450:458:1024:59
8:02
-0:16
15K
9.32 mi12:09:521:16:038:1025:18
8:09
+0:07
20K
12.43 mi12:36:011:42:128:1326:09
8:25
+0:16
Half
13.11 mi12:41:441:47:558:145:43
8:23
-0:02
25K
15.53 mi13:02:262:08:378:1720:42
8:32
+0:09
30K
18.64 mi13:29:482:35:598:2227:22
8:49
+0:17
20M
20.00 mi13:41:522:48:038:2412:04
8:53
+0:04
21M
21.00 mi13:51:062:57:178:279:14
9:14
+0:21
35K
21.75 mi13:57:133:03:248:266:07
8:11
-1:03
23M
23.00 mi14:08:033:14:148:2710:50
8:39
+0:28
24M
24.00 mi14:16:223:22:338:268:19
8:19
-0:20
40K
24.85 mi14:23:343:29:458:267:12
8:25
+0:06
25.2M
25.20 mi14:26:313:32:428:262:57
8:33
+0:08
Finish
26.22 mi14:34:413:40:528:268:10
8:01
-0:32

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

8:01 /mi

Average Pace

8:26 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:34

90% of race

Time at Steady Pace

21:18

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:19:3525:468:1825:46
8:18
#16105
10K
6.21 mi11:44:3450:458:1024:59
8:02
#15607
15K
9.32 mi12:09:521:16:038:1025:18
8:09
#15547
20K
12.43 mi12:36:011:42:128:1326:09
8:25
#15735
Half
13.11 mi12:41:441:47:558:145:43
8:23
#15802
25K
15.53 mi13:02:262:08:378:1720:42
8:32
#15896
30K
18.64 mi13:29:482:35:598:2227:22
8:49
#15919
20M
20.00 mi13:41:522:48:038:2412:04
8:53
#15921
21M
21.00 mi13:51:062:57:178:279:14
9:14
#15811
35K
21.75 mi13:57:133:03:248:266:07
8:11
#15704
23M
23.00 mi14:08:033:14:148:2710:50
8:39
#15589
24M
24.00 mi14:16:223:22:338:268:19
8:19
#15488
40K
24.85 mi14:23:343:29:458:267:12
8:25
#15387
25.2M
25.20 mi14:26:313:32:428:262:57
8:33
#15294
Finish
26.22 mi14:34:413:40:528:268:10
8:01
#15154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi161055349534915468(Top 58%)4962(Top 43%)4962(Top 273%)
10K6.21 mi3.10 mi15607+4985036+3135036+31315119(Top 57%)4739(Top 41%)4739(Top 261%)
15K9.32 mi3.11 mi15547+605007+295007+2915468(Top 58%)4962(Top 43%)4962(Top 273%)
20K12.43 mi3.11 mi15735-1885137-1305137-13016349(Top 61%)5554(Top 49%)5554(Top 306%)
Half13.11 mi0.68 mi15802-675187-505187-5017010(Top 64%)5889(Top 52%)5889(Top 324%)
25K15.53 mi2.42 mi15896-945273-865273-8616422(Top 62%)5677(Top 50%)5677(Top 312%)
30K18.64 mi3.11 mi15919-235324-515324-5116128(Top 61%)5567(Top 49%)5567(Top 306%)
20M20.00 mi1.36 mi15921-25350-265350-2615899(Top 60%)5506(Top 48%)5506(Top 303%)
21M21.00 mi1.00 mi15811+1105307+435307+4314658(Top 55%)4851(Top 42%)4851(Top 267%)
35K21.75 mi0.75 mi15704+1075259+485259+4813329(Top 50%)4191(Top 37%)4191(Top 231%)
23M23.00 mi1.25 mi15589+1155218+415218+4114109(Top 53%)4684(Top 41%)4684(Top 258%)
24M24.00 mi1.00 mi15488+1015167+515167+5113361(Top 50%)4319(Top 38%)4319(Top 238%)
40K24.85 mi0.85 mi15387+1015116+515116+5112885(Top 48%)4158(Top 36%)4158(Top 229%)
25.2M25.20 mi0.35 mi15294+935066+505066+5010018(Top 38%)2734(Top 24%)2734(Top 150%)
Finish26.22 mi1.02 mi15154+1405001+655001+6512275(Top 46%)3859(Top 34%)3859(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15468

Females

4962

F45-49

4962

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15119

Females

4739

F45-49

4739

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15468

Females

4962

F45-49

4962

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16349

Females

5554

F45-49

5554

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17010

Females

5889

F45-49

5889

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16422

Females

5677

F45-49

5677

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16128

Females

5567

F45-49

5567

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15899

Females

5506

F45-49

5506

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14658

Females

4851

F45-49

4851

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13329

Females

4191

F45-49

4191

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14109

Females

4684

F45-49

4684

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13361

Females

4319

F45-49

4319

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12885

Females

4158

F45-49

4158

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10018

Females

2734

F45-49

2734

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12275

Females

3859

F45-49

3859

Passing Analysis

Category:
Athletes Passed
2209
Passed By
1258
Net Change
+951
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16105
5K → 10K627129+498#16105#15607
10K → 15K209149+60#15607#15547
15K → 20K119307-188#15547#15735
20K → Half1279-67#15735#15802
Half → 25K106200-94#15802#15896
25K → 30K168191-23#15896#15919
30K → 20M9193-2#15919#15921
20M → 21M14232+110#15921#15811
21M → 35K1125+107#15811#15704
35K → 23M14227+115#15704#15589
23M → 24M11716+101#15589#15488
24M → 40K11918+101#15488#15387
40K → 25.2M930+93#15387#15294
25.2M → Finish15212+140#15294#15154
TOTALS22091258+951
📊

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