Boston Marathon logo
BOSTON MARATHON 2023

Peter Belanger

Bib: 21767•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:07
Rank: #19058
Start → 5K
27:07 | 8:44/mi
10K· 6.21 mi
55:55
Rank: #20646 (-1588)
5K → 10K
28:48 | 9:16/mi
15K· 9.32 mi
1:24:59
Rank: #21103 (-457)
10K → 15K
29:04 | 9:21/mi
20K· 12.43 mi
1:53:32
Rank: #20936 (+167)
15K → 20K
28:33 | 9:11/mi
Half· 13.11 mi
1:59:57
Rank: #20987 (-51)
20K → Half
6:25 | 9:24/mi
25K· 15.53 mi
2:23:24
Rank: #21055 (-68)
Half → 25K
23:27 | 9:40/mi
30K· 18.64 mi
2:54:49
Rank: #21102 (-47)
25K → 30K
31:25 | 10:07/mi
20M
3:08:37
Rank: #21064 (+38)
30K → 20M
13:48 | 10:09/mi
21M
3:19:49
Rank: #21074 (-10)
20M → 21M
11:12 | 11:12/mi
35K· 21.75 mi
3:27:17
Rank: #21078 (-4)
21M → 35K
7:28 | 9:59/mi
23M
3:40:33
Rank: #21090 (-12)
35K → 23M
13:16 | 10:36/mi
24M
3:50:52
Rank: #21108 (-18)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
4:00:17
Rank: #21165 (-57)
24M → 40K
9:25 | 11:01/mi
25.2M
4:04:20
Rank: #21191 (-26)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
4:14:50
Rank: #21246 (-55)
25.2M → Finish
10:30 | 10:18/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
Time1:59:57
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:14:53
Pace10:17 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2627:078:4427:07
8:44
-
10K
6.21 mi11:49:1455:559:0028:48
9:16
+0:32
15K
9.32 mi12:18:181:24:599:0729:04
9:21
+0:05
20K
12.43 mi12:46:511:53:329:0828:33
9:11
-0:10
Half
13.11 mi12:53:161:59:579:096:25
9:24
+0:13
25K
15.53 mi13:16:432:23:249:1423:27
9:40
+0:16
30K
18.64 mi13:48:082:54:499:2331:25
10:07
+0:27
20M
20.00 mi14:01:563:08:379:2613:48
10:09
+0:02
21M
21.00 mi14:13:083:19:499:3111:12
11:12
+1:03
35K
21.75 mi14:20:363:27:179:327:28
9:59
-1:13
23M
23.00 mi14:33:523:40:339:3513:16
10:36
+0:37
24M
24.00 mi14:44:113:50:529:3710:19
10:19
-0:17
40K
24.85 mi14:53:364:00:179:409:25
11:01
+0:42
25.2M
25.20 mi14:57:394:04:209:424:03
11:45
+0:44
Finish
26.22 mi15:08:094:14:509:4410:30
10:18
-1:27

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

8:44 /mi

Average Pace

9:44 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:24

56% of race

Time at Steady Pace

1:13:30

29% of race

Time at Slower Pace

37:56

15% of race

Average Pace: 9:43 /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 mi11:20:2627:078:4427:07
8:44
#19058
10K
6.21 mi11:49:1455:559:0028:48
9:16
#20646
15K
9.32 mi12:18:181:24:599:0729:04
9:21
#21103
20K
12.43 mi12:46:511:53:329:0828:33
9:11
#20936
Half
13.11 mi12:53:161:59:579:096:25
9:24
#20987
25K
15.53 mi13:16:432:23:249:1423:27
9:40
#21055
30K
18.64 mi13:48:082:54:499:2331:25
10:07
#21102
20M
20.00 mi14:01:563:08:379:2613:48
10:09
#21064
21M
21.00 mi14:13:083:19:499:3111:12
11:12
#21074
35K
21.75 mi14:20:363:27:179:327:28
9:59
#21078
23M
23.00 mi14:33:523:40:339:3513:16
10:36
#21090
24M
24.00 mi14:44:113:50:529:3710:19
10:19
#21108
40K
24.85 mi14:53:364:00:179:409:25
11:01
#21165
25.2M
25.20 mi14:57:394:04:209:424:03
11:45
#21191
Finish
26.22 mi15:08:094:14:509:4410:30
10:18
#21246
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19058118051180521823(Top 82%)13116(Top 86%)13116(Top 1182%)
10K6.21 mi3.10 mi20646-158812509-70412509-70421828(Top 82%)13076(Top 86%)13076(Top 1178%)
15K9.32 mi3.11 mi21103-45712742-23312742-23321823(Top 82%)13116(Top 86%)13116(Top 1182%)
20K12.43 mi3.11 mi20936+16712680+6212680+6220524(Top 77%)12532(Top 83%)12532(Top 1129%)
Half13.11 mi0.68 mi20987-5112705-2512705-2521810(Top 82%)13092(Top 86%)13092(Top 1179%)
25K15.53 mi2.42 mi21055-6812741-3612741-3621357(Top 80%)12863(Top 85%)12863(Top 1159%)
30K18.64 mi3.11 mi21102-4712742-112742-121308(Top 80%)12765(Top 84%)12765(Top 1150%)
20M20.00 mi1.36 mi21064+3812710+3212710+3220886(Top 78%)12520(Top 82%)12520(Top 1128%)
21M21.00 mi1.00 mi21074-1012690+2012690+2021261(Top 80%)12635(Top 83%)12635(Top 1138%)
35K21.75 mi0.75 mi21078-412686+412686+421193(Top 80%)12575(Top 83%)12575(Top 1133%)
23M23.00 mi1.25 mi21090-12126861268621542(Top 81%)12706(Top 84%)12706(Top 1145%)
24M24.00 mi1.00 mi21108-1812681+512681+521595(Top 81%)12681(Top 84%)12681(Top 1142%)
40K24.85 mi0.85 mi21165-5712697-1612697-1622382(Top 84%)13023(Top 86%)13023(Top 1173%)
25.2M25.20 mi0.35 mi21191-2612713-1612713-1622020(Top 83%)12853(Top 85%)12853(Top 1158%)
Finish26.22 mi1.02 mi21246-5512728-1512728-1522552(Top 85%)13111(Top 86%)13111(Top 1181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21823

Males

13116

M60-64

13116

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21828

Males

13076

M60-64

13076

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21823

Males

13116

M60-64

13116

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20524

Males

12532

M60-64

12532

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21810

Males

13092

M60-64

13092

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21357

Males

12863

M60-64

12863

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21308

Males

12765

M60-64

12765

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20886

Males

12520

M60-64

12520

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21261

Males

12635

M60-64

12635

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21193

Males

12575

M60-64

12575

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21542

Males

12706

M60-64

12706

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21595

Males

12681

M60-64

12681

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22382

Males

13023

M60-64

13023

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22020

Males

12853

M60-64

12853

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22552

Males

13111

M60-64

13111

Passing Analysis

Category:
Athletes Passed
866
Passed By
3054
Net Change
-2188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19058
5K → 10K251613-1588#19058#20646
10K → 15K45502-457#20646#21103
15K → 20K23871+167#21103#20936
20K → Half1566-51#20936#20987
Half → 25K72140-68#20987#21055
25K → 30K131178-47#21055#21102
30K → 20M8446+38#21102#21064
20M → 21M5969-10#21064#21074
21M → 35K4145-4#21074#21078
35K → 23M5466-12#21078#21090
23M → 24M4159-18#21090#21108
24M → 40K3188-57#21108#21165
40K → 25.2M1339-26#21165#21191
25.2M → Finish1772-55#21191#21246
TOTALS8663054-2188
📊

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