Boston Marathon logo
BOSTON MARATHON 2023

Ryan Casey

Bib: 1303•M

CO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 4%
Masters (Masters Men)
#0 / 9891
Top 0.8%
Division (M40-44)
#0 / 2241
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:54
Rank: #845
Start → 5K
18:54 | 6:05/mi
10K· 6.21 mi
37:46
Rank: #906 (-61)
5K → 10K
18:52 | 6:04/mi
15K· 9.32 mi
56:36
Rank: #872 (+34)
10K → 15K
18:50 | 6:04/mi
20K· 12.43 mi
1:15:49
Rank: #913 (-41)
15K → 20K
19:13 | 6:11/mi
Half· 13.11 mi
1:19:59
Rank: #918 (-5)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:34:37
Rank: #838 (+80)
Half → 25K
14:38 | 6:02/mi
30K· 18.64 mi
1:53:42
Rank: #776 (+62)
25K → 30K
19:05 | 6:09/mi
20M
2:02:08
Rank: #763 (+13)
30K → 20M
8:26 | 6:12/mi
21M
2:08:32
Rank: #730 (+33)
20M → 21M
6:24 | 6:24/mi
35K· 21.75 mi
2:12:58
Rank: #715 (+15)
21M → 35K
4:26 | 5:56/mi
23M
2:20:37
Rank: #693 (+22)
35K → 23M
7:39 | 6:07/mi
24M
2:26:37
Rank: #674 (+19)
23M → 24M
6:00 | 6:00/mi
40K· 24.85 mi
2:31:49
Rank: #655 (+19)
24M → 40K
5:12 | 6:05/mi
25.2M
2:34:02
Rank: #647 (+8)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:39:55
Rank: #626 (+21)
25.2M → Finish
5:53 | 5:46/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 Half⚖️ Balanced
Distance13.11 mi
Time1:19:59
Pace6:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:19:56
Pace6:06 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2418:546:0518:54
6:05
-
10K
6.21 mi10:38:1637:466:0518:52
6:04
-0:01
15K
9.32 mi10:57:0656:366:0418:50
6:04
0:00
20K
12.43 mi11:16:191:15:496:0619:13
6:11
+0:07
Half
13.11 mi11:20:291:19:596:064:10
6:06
-0:05
25K
15.53 mi11:35:071:34:376:0514:38
6:02
-0:04
30K
18.64 mi11:54:121:53:426:0619:05
6:09
+0:07
20M
20.00 mi12:02:382:02:086:068:26
6:12
+0:03
21M
21.00 mi12:09:022:08:326:076:24
6:24
+0:12
35K
21.75 mi12:13:282:12:586:074:26
5:56
-0:28
23M
23.00 mi12:21:072:20:376:077:39
6:07
+0:11
24M
24.00 mi12:27:072:26:376:076:00
6:00
-0:07
40K
24.85 mi12:32:192:31:496:065:12
6:05
+0:05
25.2M
25.20 mi12:34:322:34:026:072:13
6:26
+0:21
Finish
26.22 mi12:40:252:39:556:065:53
5:46
-0:40

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

5:46 /mi

Average Pace

6:06 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:18

95% of race

Time at Steady Pace

8:37

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:06 /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 mi10:19:2418:546:0518:54
6:05
#845
10K
6.21 mi10:38:1637:466:0518:52
6:04
#906
15K
9.32 mi10:57:0656:366:0418:50
6:04
#872
20K
12.43 mi11:16:191:15:496:0619:13
6:11
#913
Half
13.11 mi11:20:291:19:596:064:10
6:06
#918
25K
15.53 mi11:35:071:34:376:0514:38
6:02
#838
30K
18.64 mi11:54:121:53:426:0619:05
6:09
#776
20M
20.00 mi12:02:382:02:086:068:26
6:12
#763
21M
21.00 mi12:09:022:08:326:076:24
6:24
#730
35K
21.75 mi12:13:282:12:586:074:26
5:56
#715
23M
23.00 mi12:21:072:20:376:077:39
6:07
#693
24M
24.00 mi12:27:072:26:376:076:00
6:00
#674
40K
24.85 mi12:32:192:31:496:065:12
6:05
#655
25.2M
25.20 mi12:34:322:34:026:072:13
6:26
#647
Finish
26.22 mi12:40:252:39:556:065:53
5:46
#626
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi845795795845(Top 3%)798(Top 5%)798(Top 36%)
10K6.21 mi3.10 mi906-61855-60855-60983(Top 4%)933(Top 6%)933(Top 42%)
15K9.32 mi3.11 mi872+34823+32823+32845(Top 3%)798(Top 5%)798(Top 36%)
20K12.43 mi3.11 mi913-41864-41864-411004(Top 4%)954(Top 6%)954(Top 43%)
Half13.11 mi0.68 mi918-5869-5869-51008(Top 4%)960(Top 6%)960(Top 43%)
25K15.53 mi2.42 mi838+80791+78791+78594(Top 2%)554(Top 4%)554(Top 25%)
30K18.64 mi3.11 mi776+62734+57734+57573(Top 2%)537(Top 4%)537(Top 24%)
20M20.00 mi1.36 mi763+13721+13721+13658(Top 2%)621(Top 4%)621(Top 28%)
21M21.00 mi1.00 mi730+33688+33688+33488(Top 2%)454(Top 3%)454(Top 20%)
35K21.75 mi0.75 mi715+15673+15673+15559(Top 2%)521(Top 3%)521(Top 23%)
23M23.00 mi1.25 mi693+22651+22651+22475(Top 2%)444(Top 3%)444(Top 20%)
24M24.00 mi1.00 mi674+19633+18633+18544(Top 2%)514(Top 3%)514(Top 23%)
40K24.85 mi0.85 mi655+19614+19614+19455(Top 2%)428(Top 3%)428(Top 19%)
25.2M25.20 mi0.35 mi647+8606+8606+8397(Top 1%)375(Top 2%)375(Top 17%)
Finish26.22 mi1.02 mi626+21586+20586+20325(Top 1%)307(Top 2%)307(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

845

Males

798

M40-44

798

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

983

Males

933

M40-44

933

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

845

Males

798

M40-44

798

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1004

Males

954

M40-44

954

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1008

Males

960

M40-44

960

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

594

Males

554

M40-44

554

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

573

Males

537

M40-44

537

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

658

Males

621

M40-44

621

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

488

Males

454

M40-44

454

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

559

Males

521

M40-44

521

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

475

Males

444

M40-44

444

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

544

Males

514

M40-44

514

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

455

Males

428

M40-44

428

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

397

Males

375

M40-44

375

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

325

Males

307

M40-44

307

Passing Analysis

Category:
Athletes Passed
401
Passed By
182
Net Change
+219
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#845
5K → 10K2182-61#845#906
10K → 15K428+34#906#872
15K → 20K1758-41#872#913
20K → Half510-5#913#918
Half → 25K811+80#918#838
25K → 30K631+62#838#776
30K → 20M174+13#776#763
20M → 21M352+33#763#730
21M → 35K172+15#730#715
35K → 23M286+22#715#693
23M → 24M234+19#693#674
24M → 40K212+19#674#655
40K → 25.2M80+8#655#647
25.2M → Finish232+21#647#626
TOTALS401182+219
📊

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