Boston Marathon logo
BOSTON MARATHON 2023

Matthew Stockton

Bib: 10307•M

NY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 27%
Division (M45-49)
#0 / 2252
Top 36%
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
7:18/mi
22:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:03/mi
44:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:06/mi
1:06:37
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:29:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:02/mi
1:33:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:51:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:25/mi
2:14:23
↑ 181↓ 1480.2%
20M
7:30/mi
2:24:34
↑ 64↓ 500.2%
21M
7:53/mi
2:32:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:37:58
↑ 17↓ 861.7%
23M
7:48/mi
2:47:44
↑ 23↓ 630.6%
24M
7:47/mi
2:55:31
↓ 821.3%
40K· 24.85 mi
7:56/mi
3:02:18
↓ 200.3%
25.2M
8:25/mi
3:05:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:47/mi
3:13:08
↑ 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
Time1:33:48
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4922:417:1822:41
7:18
-
10K
6.21 mi11:10:4344:357:1021:54
7:03
-0:15
15K
9.32 mi11:32:451:06:377:0922:02
7:06
+0:03
20K
12.43 mi11:55:081:29:007:1022:23
7:12
+0:06
Half
13.11 mi11:59:561:33:487:094:48
7:02
-0:10
25K
15.53 mi12:17:271:51:197:1017:31
7:13
+0:11
30K
18.64 mi12:40:312:14:237:1323:04
7:25
+0:12
20M
20.00 mi12:50:422:24:347:1410:11
7:30
+0:05
21M
21.00 mi12:58:352:32:277:167:53
7:53
+0:23
35K
21.75 mi13:04:062:37:587:165:31
7:22
-0:31
23M
23.00 mi13:13:522:47:447:189:46
7:48
+0:26
24M
24.00 mi13:21:392:55:317:197:47
7:47
-0:01
40K
24.85 mi13:28:263:02:187:206:47
7:56
+0:09
25.2M
25.20 mi13:31:203:05:127:212:54
8:25
+0:29
Finish
26.22 mi13:39:163:13:087:227:56
7:47
-0:38

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

7:02 /mi

Average Pace

7:22 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:05

78% of race

Time at Steady Pace

40:09

21% of race

Time at Slower Pace

2:54

2% of race

Average Pace: 7:22 /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 mi10:48:4922:417:1822:41
7:18
#8106
10K
6.21 mi11:10:4344:357:1021:54
7:03
#7595
15K
9.32 mi11:32:451:06:377:0922:02
7:06
#7398
20K
12.43 mi11:55:081:29:007:1022:23
7:12
#7284
Half
13.11 mi11:59:561:33:487:094:48
7:02
#7262
25K
15.53 mi12:17:271:51:197:1017:31
7:13
#7162
30K
18.64 mi12:40:312:14:237:1323:04
7:25
#7037
20M
20.00 mi12:50:422:24:347:1410:11
7:30
#6993
21M
21.00 mi12:58:352:32:277:167:53
7:53
#6924
35K
21.75 mi13:04:062:37:587:165:31
7:22
#6920
23M
23.00 mi13:13:522:47:447:189:46
7:48
#6948
24M
24.00 mi13:21:392:55:317:197:47
7:47
#7030
40K
24.85 mi13:28:263:02:187:206:47
7:56
#7099
25.2M
25.20 mi13:31:203:05:127:212:54
8:25
#7106
Finish
26.22 mi13:39:163:13:087:227:56
7:47
#7193
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8106704370437109(Top 27%)6322(Top 42%)6322(Top 281%)
10K6.21 mi3.10 mi7595+5116704+3396704+3397113(Top 27%)6322(Top 42%)6322(Top 281%)
15K9.32 mi3.11 mi7398+1976552+1526552+1527109(Top 27%)6322(Top 42%)6322(Top 281%)
20K12.43 mi3.11 mi7284+1146454+986454+987129(Top 27%)6307(Top 42%)6307(Top 280%)
Half13.11 mi0.68 mi7262+226437+176437+176747(Top 25%)6054(Top 40%)6054(Top 269%)
25K15.53 mi2.42 mi7162+1006354+836354+836817(Top 26%)6022(Top 40%)6022(Top 267%)
30K18.64 mi3.11 mi7037+1256242+1126242+1126744(Top 25%)5894(Top 39%)5894(Top 262%)
20M20.00 mi1.36 mi6993+446203+396203+396735(Top 25%)5795(Top 38%)5795(Top 257%)
21M21.00 mi1.00 mi6924+696137+666137+666636(Top 25%)5636(Top 37%)5636(Top 250%)
35K21.75 mi0.75 mi6920+46125+126125+127604(Top 29%)6246(Top 41%)6246(Top 277%)
23M23.00 mi1.25 mi6948-286112+136112+138390(Top 32%)6632(Top 44%)6632(Top 294%)
24M24.00 mi1.00 mi7030-826152-406152-409616(Top 36%)7195(Top 47%)7195(Top 319%)
40K24.85 mi0.85 mi7099-696184-326184-329546(Top 36%)7093(Top 47%)7093(Top 315%)
25.2M25.20 mi0.35 mi7106-76182+26182+28878(Top 33%)6651(Top 44%)6651(Top 295%)
Finish26.22 mi1.02 mi7193-876203-216203-2110528(Top 40%)7552(Top 50%)7552(Top 335%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7109

Males

6322

M45-49

6322

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7113

Males

6322

M45-49

6322

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7109

Males

6322

M45-49

6322

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7129

Males

6307

M45-49

6307

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

6747

Males

6054

M45-49

6054

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6817

Males

6022

M45-49

6022

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6744

Males

5894

M45-49

5894

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6735

Males

5795

M45-49

5795

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6636

Males

5636

M45-49

5636

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7604

Males

6246

M45-49

6246

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8390

Males

6632

M45-49

6632

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9616

Males

7195

M45-49

7195

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9546

Males

7093

M45-49

7093

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8878

Males

6651

M45-49

6651

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10528

Males

7552

M45-49

7552

Passing Analysis

Category:
Athletes Passed
1766
Passed By
853
Net Change
+913
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8106
5K → 10K58675+511#8106#7595
10K → 15K25154+197#7595#7398
15K → 20K17056+114#7398#7284
20K → Half3412+22#7284#7262
Half → 25K13232+100#7262#7162
25K → 30K18762+125#7162#7037
30K → 20M7531+44#7037#6993
20M → 21M9425+69#6993#6924
21M → 35K3834+4#6924#6920
35K → 23M6997-28#6920#6948
23M → 24M31113-82#6948#7030
24M → 40K3099-69#7030#7099
40K → 25.2M2128-7#7099#7106
25.2M → Finish48135-87#7106#7193
TOTALS1766853+913
📊

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