Boston Marathon logo
BOSTON MARATHON 2023

Melissa Assalone

Bib: 13914•F

VA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 11%
Gender (Female)
#0 / 11423
Top 1%
Division (F18-39)
#0 / 4884
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:02/mi
21:52
↑ 97↓ 3451.5%
10K· 6.21 mi
6:36/mi
42:23
↑ 79↓ 1380.4%
15K· 9.32 mi
6:38/mi
1:03:00
↑ 67↓ 78
20K· 12.43 mi
6:45/mi
1:23:57
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:28:29
↑ 19↓ 370.5%
25K· 15.53 mi
6:36/mi
1:44:28
↑ 66↓ 880.2%
30K· 18.64 mi
6:40/mi
2:05:11
↑ 181↓ 1480.2%
20M
6:40/mi
2:14:14
↑ 64↓ 500.2%
21M
6:55/mi
2:21:09
↑ 106↓ 241.6%
35K· 21.75 mi
6:36/mi
2:26:05
↑ 17↓ 861.7%
23M
6:43/mi
2:34:30
↑ 23↓ 630.6%
24M
6:27/mi
2:40:57
↓ 821.3%
40K· 24.85 mi
6:36/mi
2:46:36
↓ 200.3%
25.2M
7:03/mi
2:49:02
↑ 13↓ 160.2%
Finish· 26.22 mi
6:21/mi
2:55:30
↑ 22↓ 21

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 Half
Distance13.11 mi
Time1:28:29
Pace6:45 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:27:01
Pace6:38 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5921:527:0221:52
7:02
-
10K
6.21 mi11:10:3042:236:4920:31
6:36
-0:26
15K
9.32 mi11:31:071:03:006:4620:37
6:38
+0:02
20K
12.43 mi11:52:041:23:576:4520:57
6:45
+0:07
Half
13.11 mi11:56:361:28:296:454:32
6:39
-0:06
25K
15.53 mi12:12:351:44:286:4315:59
6:36
-0:03
30K
18.64 mi12:33:182:05:116:4320:43
6:40
+0:04
20M
20.00 mi12:42:212:14:146:439:03
6:40
0:00
21M
21.00 mi12:49:162:21:096:436:55
6:55
+0:15
35K
21.75 mi12:54:122:26:056:434:56
6:36
-0:19
23M
23.00 mi13:02:372:34:306:438:25
6:43
+0:07
24M
24.00 mi13:09:042:40:576:426:27
6:27
-0:16
40K
24.85 mi13:14:432:46:366:425:39
6:36
+0:09
25.2M
25.20 mi13:17:092:49:026:422:26
7:03
+0:27
Finish
26.22 mi13:23:372:55:306:426:28
6:21
-0:42

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

6:21 /mi

Average Pace

6:42 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:12

86% of race

Time at Steady Pace

24:18

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:42 /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 mi10:49:5921:527:0221:52
7:02
#6495
10K
6.21 mi11:10:3042:236:4920:31
6:36
#5135
15K
9.32 mi11:31:071:03:006:4620:37
6:38
#4605
20K
12.43 mi11:52:041:23:576:4520:57
6:45
#4405
Half
13.11 mi11:56:361:28:296:454:32
6:39
#4369
25K
15.53 mi12:12:351:44:286:4315:59
6:36
#4013
30K
18.64 mi12:33:182:05:116:4320:43
6:40
#3580
20M
20.00 mi12:42:212:14:146:439:03
6:40
#3385
21M
21.00 mi12:49:162:21:096:436:55
6:55
#3233
35K
21.75 mi12:54:122:26:056:434:56
6:36
#3214
23M
23.00 mi13:02:372:34:306:438:25
6:43
#3104
24M
24.00 mi13:09:042:40:576:426:27
6:27
#3021
40K
24.85 mi13:14:432:46:366:425:39
6:36
#2936
25.2M
25.20 mi13:17:092:49:026:422:26
7:03
#2904
Finish
26.22 mi13:23:372:55:306:426:28
6:21
#2819
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi64956046043602(Top 14%)194(Top 2%)194(Top 4%)
10K6.21 mi3.10 mi5135+1360370+234370+2343539(Top 13%)188(Top 2%)188(Top 4%)
15K9.32 mi3.11 mi4605+530301+69301+693602(Top 14%)194(Top 2%)194(Top 4%)
20K12.43 mi3.11 mi4405+200280+21280+213938(Top 15%)223(Top 2%)223(Top 5%)
Half13.11 mi0.68 mi4369+36275+5275+53907(Top 15%)219(Top 2%)219(Top 4%)
25K15.53 mi2.42 mi4013+356234+41234+412681(Top 10%)113(Top 1.0%)113(Top 2%)
30K18.64 mi3.11 mi3580+433188+46188+462266(Top 9%)104(Top 0.9%)104(Top 2%)
20M20.00 mi1.36 mi3385+195176+12176+122131(Top 8%)101(Top 0.9%)101(Top 2%)
21M21.00 mi1.00 mi3233+152165+11165+111852(Top 7%)90(Top 0.8%)90(Top 2%)
35K21.75 mi0.75 mi3214+191651653018(Top 11%)190(Top 2%)190(Top 4%)
23M23.00 mi1.25 mi3104+110154+11154+112295(Top 9%)133(Top 1%)133(Top 3%)
24M24.00 mi1.00 mi3021+83151+3151+31914(Top 7%)114(Top 1.0%)114(Top 2%)
40K24.85 mi0.85 mi2936+85146+5146+51977(Top 7%)121(Top 1%)121(Top 2%)
25.2M25.20 mi0.35 mi2904+32145+1145+12011(Top 8%)123(Top 1%)123(Top 3%)
Finish26.22 mi1.02 mi2819+85140+5140+51834(Top 7%)116(Top 1%)116(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3602

Females

194

F18-39

194

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3539

Females

188

F18-39

188

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3602

Females

194

F18-39

194

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3938

Females

223

F18-39

223

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

3907

Females

219

F18-39

219

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2681

Females

113

F18-39

113

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2266

Females

104

F18-39

104

30K→20M

18.6 - 20.0 mi

Top 8%
×5story building
+64ft-50ft

Overall

2131

Females

101

F18-39

101

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1852

Females

90

F18-39

90

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3018

Females

190

F18-39

190

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2295

Females

133

F18-39

133

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1914

Females

114

F18-39

114

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1977

Females

121

F18-39

121

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2011

Females

123

F18-39

123

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1834

Females

116

F18-39

116

Passing Analysis

Category:
Athletes Passed
3786
Passed By
110
Net Change
+3676
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6495
5K → 10K13655+1360#6495#5135
10K → 15K5388+530#5135#4605
15K → 20K22727+200#4605#4405
20K → Half415+36#4405#4369
Half → 25K3560+356#4369#4013
25K → 30K4363+433#4013#3580
30K → 20M1972+195#3580#3385
20M → 21M1542+152#3385#3233
21M → 35K3819+19#3233#3214
35K → 23M1199+110#3214#3104
23M → 24M929+83#3104#3021
24M → 40K916+85#3021#2936
40K → 25.2M397+32#2936#2904
25.2M → Finish938+85#2904#2819
TOTALS3786110+3676
📊

Passing Visuals

Category:
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