Boston Marathon logo
BOSTON MARATHON 2023

Brian Gray

Bib: 3753•M

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 21%
Masters (Masters Men)
#0 / 9891
Top 9%
Division (M55-59)
#0 / 1422
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:25
Rank: #2680
Start → 5K
20:25 | 6:34/mi
10K· 6.21 mi
40:39
Rank: #2753 (-73)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:01:22
Rank: #3085 (-332)
10K → 15K
20:43 | 6:40/mi
20K· 12.43 mi
1:22:15
Rank: #3201 (-116)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:26:41
Rank: #3168 (+33)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:42:59
Rank: #3204 (-36)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:04:24
Rank: #3228 (-24)
25K → 30K
21:25 | 6:54/mi
20M
2:13:55
Rank: #3259 (-31)
30K → 20M
9:31 | 7:00/mi
21M
2:21:17
Rank: #3278 (-19)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:26:15
Rank: #3267 (+11)
21M → 35K
4:58 | 6:38/mi
23M
2:35:03
Rank: #3281 (-14)
35K → 23M
8:48 | 7:02/mi
24M
2:41:48
Rank: #3266 (+15)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:47:47
Rank: #3276 (-10)
24M → 40K
5:59 | 7:00/mi
25.2M
2:50:22
Rank: #3277 (-1)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:57:28
Rank: #3322 (-45)
25.2M → Finish
7:06 | 6:58/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
Time1:26:41
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:30:47
Pace6:56 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3620:256:3420:25
6:34
-
10K
6.21 mi10:41:5040:396:3320:14
6:31
-0:03
15K
9.32 mi11:02:331:01:226:3520:43
6:40
+0:09
20K
12.43 mi11:23:261:22:156:3720:53
6:43
+0:03
Half
13.11 mi11:27:521:26:416:374:26
6:30
-0:13
25K
15.53 mi11:44:101:42:596:3816:18
6:43
+0:13
30K
18.64 mi12:05:352:04:246:4021:25
6:54
+0:11
20M
20.00 mi12:15:062:13:556:429:31
7:00
+0:06
21M
21.00 mi12:22:282:21:176:447:22
7:22
+0:22
35K
21.75 mi12:27:262:26:156:434:58
6:38
-0:44
23M
23.00 mi12:36:142:35:036:448:48
7:02
+0:24
24M
24.00 mi12:42:592:41:486:456:45
6:45
-0:17
40K
24.85 mi12:48:582:47:476:455:59
7:00
+0:15
25.2M
25.20 mi12:51:332:50:226:462:35
7:29
+0:29
Finish
26.22 mi12:58:392:57:286:467:06
6:58
-0:31

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

6:30 /mi

Average Pace

6:46 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:31

94% of race

Time at Steady Pace

9:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:21:3620:256:3420:25
6:34
#2680
10K
6.21 mi10:41:5040:396:3320:14
6:31
#2753
15K
9.32 mi11:02:331:01:226:3520:43
6:40
#3085
20K
12.43 mi11:23:261:22:156:3720:53
6:43
#3201
Half
13.11 mi11:27:521:26:416:374:26
6:30
#3168
25K
15.53 mi11:44:101:42:596:3816:18
6:43
#3204
30K
18.64 mi12:05:352:04:246:4021:25
6:54
#3228
20M
20.00 mi12:15:062:13:556:429:31
7:00
#3259
21M
21.00 mi12:22:282:21:176:447:22
7:22
#3278
35K
21.75 mi12:27:262:26:156:434:58
6:38
#3267
23M
23.00 mi12:36:142:35:036:448:48
7:02
#3281
24M
24.00 mi12:42:592:41:486:456:45
6:45
#3266
40K
24.85 mi12:48:582:47:476:455:59
7:00
#3276
25.2M
25.20 mi12:51:332:50:226:462:35
7:29
#3277
Finish
26.22 mi12:58:392:57:286:467:06
6:58
#3322
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi2680255225523821(Top 14%)3592(Top 24%)3592(Top 253%)
10K6.21 mi3.10 mi2753-732625-732625-732883(Top 11%)2755(Top 18%)2755(Top 194%)
15K9.32 mi3.11 mi3085-3322940-3152940-3153821(Top 14%)3592(Top 24%)3592(Top 253%)
20K12.43 mi3.11 mi3201-1163047-1073047-1073735(Top 14%)3529(Top 23%)3529(Top 248%)
Half13.11 mi0.68 mi3168+333018+293018+292809(Top 11%)2693(Top 18%)2693(Top 189%)
25K15.53 mi2.42 mi3204-363052-343052-343537(Top 13%)3342(Top 22%)3342(Top 235%)
30K18.64 mi3.11 mi3228-243072-203072-203606(Top 14%)3386(Top 22%)3386(Top 238%)
20M20.00 mi1.36 mi3259-313092-203092-204028(Top 15%)3728(Top 25%)3728(Top 262%)
21M21.00 mi1.00 mi3278-193105-133105-133946(Top 15%)3638(Top 24%)3638(Top 256%)
35K21.75 mi0.75 mi3267+113093+123093+123217(Top 12%)3002(Top 20%)3002(Top 211%)
23M23.00 mi1.25 mi3281-143107-143107-143911(Top 15%)3600(Top 24%)3600(Top 253%)
24M24.00 mi1.00 mi3266+153092+153092+153368(Top 13%)3105(Top 20%)3105(Top 218%)
40K24.85 mi0.85 mi3276-103098-63098-63817(Top 14%)3434(Top 23%)3434(Top 241%)
25.2M25.20 mi0.35 mi3277-13100-23100-23801(Top 14%)3391(Top 22%)3391(Top 238%)
Finish26.22 mi1.02 mi3322-453139-393139-394983(Top 19%)4254(Top 28%)4254(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3821

Males

3592

M55-59

3592

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2883

Males

2755

M55-59

2755

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3821

Males

3592

M55-59

3592

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3735

Males

3529

M55-59

3529

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2809

Males

2693

M55-59

2693

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3537

Males

3342

M55-59

3342

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3606

Males

3386

M55-59

3386

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4028

Males

3728

M55-59

3728

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3946

Males

3638

M55-59

3638

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3217

Males

3002

M55-59

3002

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3911

Males

3600

M55-59

3600

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3368

Males

3105

M55-59

3105

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3817

Males

3434

M55-59

3434

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3801

Males

3391

M55-59

3391

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

4983

Males

4254

M55-59

4254

Passing Analysis

Category:
Athletes Passed
676
Passed By
1318
Net Change
-642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2680
5K → 10K123196-73#2680#2753
10K → 15K18350-332#2753#3085
15K → 20K50166-116#3085#3201
20K → Half429+33#3201#3168
Half → 25K4682-36#3168#3204
25K → 30K89113-24#3204#3228
30K → 20M5384-31#3228#3259
20M → 21M3554-19#3259#3278
21M → 35K3221+11#3278#3267
35K → 23M5165-14#3267#3281
23M → 24M4631+15#3281#3266
24M → 40K3343-10#3266#3276
40K → 25.2M2122-1#3276#3277
25.2M → Finish3782-45#3277#3322
TOTALS6761318-642
📊

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