Boston Marathon logo
BOSTON MARATHON 2023

Stephen Crook

Bib: 27203•M

GA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:10
Rank: #23516
Start → 5K
10:02/mi
31:10 split
10K· 6.21 mi
1:01:43
Rank: #23468 (+48)
5K → 10K
9:50/mi
30:33 split
15K· 9.32 mi
1:32:17
Rank: #23372 (+96)
10K → 15K
9:50/mi
30:34 split
20K· 12.43 mi
2:06:09
Rank: #23734 (-362)
15K → 20K
10:54/mi
33:52 split
Half· 13.11 mi
2:13:50
Rank: #23819 (-85)
20K → Half
11:16/mi
7:41 split
25K· 15.53 mi
2:43:50
Rank: #24269 (-450)
Half → 25K
12:22/mi
30:00 split
30K· 18.64 mi
3:25:50
Rank: #24745 (-476)
25K → 30K
13:31/mi
42:00 split
20M
3:45:34
Rank: #24955 (-210)
30K → 20M
14:31/mi
19:44 split
21M
4:00:29
Rank: #25040 (-85)
20M → 21M
14:55/mi
14:55 split
35K· 21.75 mi
4:11:09
Rank: #25120 (-80)
21M → 35K
14:15/mi
10:40 split
23M
4:29:37
Rank: #25238 (-118)
35K → 23M
14:45/mi
18:28 split
24M
4:46:01
Rank: #25409 (-171)
23M → 24M
16:24/mi
16:24 split
40K· 24.85 mi
5:00:09
Rank: #25506 (-97)
24M → 40K
16:32/mi
14:08 split
25.2M
5:05:52
Rank: #25528 (-22)
40K → 25.2M
16:35/mi
5:43 split
Finish· 26.22 mi
5:20:24
Rank: #25612 (-84)
25.2M → Finish
14:16/mi
14:32 split

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
Time2:13:50
Pace10:13 /mi
2nd Half
Distance13.11 mi
Time3:06:34
Pace14:14 /mi
📊Positive Split: 39.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3131:1010:0231:10
10:02
-
10K
6.21 mi12:24:041:01:439:5630:33
9:50
-0:12
15K
9.32 mi12:54:381:32:179:5430:34
9:50
0:00
20K
12.43 mi13:28:302:06:0910:0933:52
10:54
+1:04
Half
13.11 mi13:36:112:13:5010:137:41
11:16
+0:22
25K
15.53 mi14:06:112:43:5010:3330:00
12:22
+1:06
30K
18.64 mi14:48:113:25:5011:0342:00
13:31
+1:09
20M
20.00 mi15:07:553:45:3411:1719:44
14:31
+1:00
21M
21.00 mi15:22:504:00:2911:2714:55
14:55
+0:24
35K
21.75 mi15:33:304:11:0911:3310:40
14:15
-0:40
23M
23.00 mi15:51:584:29:3711:4318:28
14:45
+0:30
24M
24.00 mi16:08:224:46:0111:5516:24
16:24
+1:39
40K
24.85 mi16:22:305:00:0912:0514:08
16:32
+0:08
25.2M
25.20 mi16:28:135:05:5212:085:43
16:35
+0:03
Finish
26.22 mi16:42:455:20:2412:1414:32
14:16
-2:19

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

9:50 /mi

Average Pace

12:14 /mi

Slowest Pace

16:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:50

51% of race

Time at Steady Pace

2:00:19

38% of race

Time at Slower Pace

36:15

11% of race

Average Pace: 12:13 /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 mi11:53:3131:1010:0231:10
10:02
#23516
10K
6.21 mi12:24:041:01:439:5630:33
9:50
#23468
15K
9.32 mi12:54:381:32:179:5430:34
9:50
#23372
20K
12.43 mi13:28:302:06:0910:0933:52
10:54
#23734
Half
13.11 mi13:36:112:13:5010:137:41
11:16
#23819
25K
15.53 mi14:06:112:43:5010:3330:00
12:22
#24269
30K
18.64 mi14:48:113:25:5011:0342:00
13:31
#24745
20M
20.00 mi15:07:553:45:3411:1719:44
14:31
#24955
21M
21.00 mi15:22:504:00:2911:2714:55
14:55
#25040
35K
21.75 mi15:33:304:11:0911:3310:40
14:15
#25120
23M
23.00 mi15:51:584:29:3711:4318:28
14:45
#25238
24M
24.00 mi16:08:224:46:0111:5516:24
16:24
#25409
40K
24.85 mi16:22:305:00:0912:0514:08
16:32
#25506
25.2M
25.20 mi16:28:135:05:5212:085:43
16:35
#25528
Finish
26.22 mi16:42:455:20:2412:1414:32
14:16
#25612
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23516138431384323151(Top 87%)13705(Top 90%)13705(Top 964%)
10K6.21 mi3.10 mi23468+4813841+213841+223345(Top 88%)13789(Top 91%)13789(Top 970%)
15K9.32 mi3.11 mi23372+9613809+3213809+3223151(Top 87%)13705(Top 90%)13705(Top 964%)
20K12.43 mi3.11 mi23734-36213978-16913978-16924487(Top 92%)14271(Top 94%)14271(Top 1004%)
Half13.11 mi0.68 mi23819-8514004-2614004-2625263(Top 95%)14588(Top 96%)14588(Top 1026%)
25K15.53 mi2.42 mi24269-45014190-18614190-18625442(Top 96%)14667(Top 97%)14667(Top 1031%)
30K18.64 mi3.11 mi24745-47614381-19114381-19125757(Top 97%)14756(Top 97%)14756(Top 1038%)
20M20.00 mi1.36 mi24955-21014464-8314464-8326106(Top 98%)14902(Top 98%)14902(Top 1048%)
21M21.00 mi1.00 mi25040-8514493-2914493-2925679(Top 96%)14716(Top 97%)14716(Top 1035%)
35K21.75 mi0.75 mi25120-8014520-2714520-2726207(Top 98%)14952(Top 99%)14952(Top 1051%)
23M23.00 mi1.25 mi25238-11814560-4014560-4026202(Top 98%)14939(Top 98%)14939(Top 1051%)
24M24.00 mi1.00 mi25409-17114641-8114641-8126548(Top 100%)15129(Top 100%)15129(Top 1064%)
40K24.85 mi0.85 mi25506-9714678-3714678-3726488(Top 99%)15092(Top 99%)15092(Top 1061%)
25.2M25.20 mi0.35 mi25528-2214684-614684-626279(Top 99%)14964(Top 99%)14964(Top 1052%)
Finish26.22 mi1.02 mi25612-8414729-4514729-4526408(Top 99%)15034(Top 99%)15034(Top 1057%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23151

Males

13705

M55-59

13705

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23345

Males

13789

M55-59

13789

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23151

Males

13705

M55-59

13705

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24487

Males

14271

M55-59

14271

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25263

Males

14588

M55-59

14588

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

25442

Males

14667

M55-59

14667

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25757

Males

14756

M55-59

14756

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

26106

Males

14902

M55-59

14902

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25679

Males

14716

M55-59

14716

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

26207

Males

14952

M55-59

14952

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26202

Males

14939

M55-59

14939

23M→24M

23.0 - 24.0 mi

Top 100%
×6story building
+12ft-82ft

Overall

26548

Males

15129

M55-59

15129

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26488

Males

15092

M55-59

15092

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26279

Males

14964

M55-59

14964

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

26408

Males

15034

M55-59

15034

Passing Analysis

Category:
Athletes Passed
514
Passed By
2610
Net Change
-2096
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23516
5K → 10K235187+48#23516#23468
10K → 15K17882+96#23468#23372
15K → 20K28390-362#23372#23734
20K → Half590-85#23734#23819
Half → 25K14464-450#23819#24269
25K → 30K12488-476#24269#24745
30K → 20M8218-210#24745#24955
20M → 21M994-85#24955#25040
21M → 35K686-80#25040#25120
35K → 23M9127-118#25120#25238
23M → 24M1172-171#25238#25409
24M → 40K6103-97#25409#25506
40K → 25.2M224-22#25506#25528
25.2M → Finish185-84#25528#25612
TOTALS5142610-2096
📊

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