Boston Marathon logo
BOSTON MARATHON 2023

Matthew Platkin

Bib: 29625•M

NJ

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:23/mi
29:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:10/mi
57:40
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:26:11
↑ 67↓ 78
20K· 12.43 mi
9:19/mi
1:55:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:01:29
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:25:50
↑ 66↓ 880.2%
30K· 18.64 mi
11:11/mi
3:00:35
↑ 181↓ 1480.2%
20M
11:55/mi
3:16:47
↑ 64↓ 500.2%
21M
14:05/mi
3:30:52
↑ 106↓ 241.6%
35K· 21.75 mi
10:36/mi
3:38:48
↑ 17↓ 861.7%
23M
12:20/mi
3:54:14
↑ 23↓ 630.6%
24M
12:53/mi
4:07:07
↓ 821.3%
40K· 24.85 mi
12:59/mi
4:18:13
↓ 200.3%
25.2M
13:55/mi
4:23:01
↑ 13↓ 160.2%
Finish· 26.22 mi
11:07/mi
4:34:21
↑ 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 HalfFaster
Distance13.11 mi
Time2:01:29
Pace9:16 /mi
2nd Half
Distance13.11 mi
Time2:32:52
Pace11:40 /mi
📊Positive Split: 25.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:4929:109:2329:10
9:23
-
10K
6.21 mi12:15:1957:409:1728:30
9:10
-0:13
15K
9.32 mi12:43:501:26:119:1528:31
9:11
+0:01
20K
12.43 mi13:12:471:55:089:1628:57
9:19
+0:08
Half
13.11 mi13:19:082:01:299:166:21
9:18
-0:01
25K
15.53 mi13:43:292:25:509:2324:21
10:03
+0:45
30K
18.64 mi14:18:143:00:359:4134:45
11:11
+1:08
20M
20.00 mi14:34:263:16:479:5016:12
11:55
+0:44
21M
21.00 mi14:48:313:30:5210:0214:05
14:05
+2:10
35K
21.75 mi14:56:273:38:4810:047:56
10:36
-3:29
23M
23.00 mi15:11:533:54:1410:1115:26
12:20
+1:44
24M
24.00 mi15:24:464:07:0710:1812:53
12:53
+0:33
40K
24.85 mi15:35:524:18:1310:2311:06
12:59
+0:06
25.2M
25.20 mi15:40:404:23:0110:264:48
13:55
+0:56
Finish
26.22 mi15:52:004:34:2110:2811:20
11:07
-2:48

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

9:10 /mi

Average Pace

10:28 /mi

Slowest Pace

14:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:50

53% of race

Time at Steady Pace

1:10:13

26% of race

Time at Slower Pace

58:18

21% of race

Average Pace: 10:28 /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 mi11:46:4929:109:2329:10
9:23
#21778
10K
6.21 mi12:15:1957:409:1728:30
9:10
#21668
15K
9.32 mi12:43:501:26:119:1528:31
9:11
#21521
20K
12.43 mi13:12:471:55:089:1628:57
9:19
#21402
Half
13.11 mi13:19:082:01:299:166:21
9:18
#21400
25K
15.53 mi13:43:292:25:509:2324:21
10:03
#21559
30K
18.64 mi14:18:143:00:359:4134:45
11:11
#22023
20M
20.00 mi14:34:263:16:479:5016:12
11:55
#22252
21M
21.00 mi14:48:313:30:5210:0214:05
14:05
#22527
35K
21.75 mi14:56:273:38:4810:047:56
10:36
#22514
23M
23.00 mi15:11:533:54:1410:1115:26
12:20
#22666
24M
24.00 mi15:24:464:07:0710:1812:53
12:53
#22839
40K
24.85 mi15:35:524:18:1310:2311:06
12:59
#22958
25.2M
25.20 mi15:40:404:23:0110:264:48
13:55
#23019
Finish
26.22 mi15:52:004:34:2110:2811:20
11:07
#23058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21778129801298021230(Top 80%)12852(Top 85%)12852(Top 243%)
10K6.21 mi3.10 mi21668+11012976+412976+421543(Top 81%)12950(Top 85%)12950(Top 245%)
15K9.32 mi3.11 mi21521+14712932+4412932+4421230(Top 80%)12852(Top 85%)12852(Top 243%)
20K12.43 mi3.11 mi21402+11912886+4612886+4621020(Top 79%)12759(Top 84%)12759(Top 241%)
Half13.11 mi0.68 mi21400+212890-412890-421533(Top 81%)12987(Top 86%)12987(Top 246%)
25K15.53 mi2.42 mi21559-15912961-7112961-7122306(Top 84%)13286(Top 88%)13286(Top 251%)
30K18.64 mi3.11 mi22023-46413156-19513156-19523385(Top 88%)13690(Top 90%)13690(Top 259%)
20M20.00 mi1.36 mi22252-22913247-9113247-9124100(Top 91%)13946(Top 92%)13946(Top 264%)
21M21.00 mi1.00 mi22527-27513352-10513352-10525098(Top 94%)14411(Top 95%)14411(Top 273%)
35K21.75 mi0.75 mi22514+1313343+913343+922577(Top 85%)13197(Top 87%)13197(Top 250%)
23M23.00 mi1.25 mi22666-15213399-5613399-5624392(Top 92%)14033(Top 92%)14033(Top 266%)
24M24.00 mi1.00 mi22839-17313462-6313462-6325392(Top 95%)14490(Top 95%)14490(Top 274%)
40K24.85 mi0.85 mi22958-11913514-5213514-5224923(Top 94%)14264(Top 94%)14264(Top 270%)
25.2M25.20 mi0.35 mi23019-6113549-3513549-3524938(Top 94%)14249(Top 94%)14249(Top 270%)
Finish26.22 mi1.02 mi23058-3913564-1513564-1524168(Top 91%)13911(Top 92%)13911(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21230

Males

12852

M18-39

12852

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21543

Males

12950

M18-39

12950

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21230

Males

12852

M18-39

12852

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

21020

Males

12759

M18-39

12759

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21533

Males

12987

M18-39

12987

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22306

Males

13286

M18-39

13286

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23385

Males

13690

M18-39

13690

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

24100

Males

13946

M18-39

13946

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

25098

Males

14411

M18-39

14411

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22577

Males

13197

M18-39

13197

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24392

Males

14033

M18-39

14033

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25392

Males

14490

M18-39

14490

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24923

Males

14264

M18-39

14264

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24938

Males

14249

M18-39

14249

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24168

Males

13911

M18-39

13911

Passing Analysis

Category:
Athletes Passed
1032
Passed By
2312
Net Change
-1280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21778
5K → 10K334224+110#21778#21668
10K → 15K23992+147#21668#21521
15K → 20K20283+119#21521#21402
20K → Half2624+2#21402#21400
Half → 25K56215-159#21400#21559
25K → 30K46510-464#21559#22023
30K → 20M15244-229#22023#22252
20M → 21M8283-275#22252#22527
21M → 35K3825+13#22527#22514
35K → 23M24176-152#22514#22666
23M → 24M8181-173#22666#22839
24M → 40K10129-119#22839#22958
40K → 25.2M162-61#22958#23019
25.2M → Finish2564-39#23019#23058
TOTALS10322312-1280
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing