Boston Marathon logo
BOSTON MARATHON 2023

Alan Mccarthy

Bib: 9016•M

BC

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:58
Rank: #8776
Start → 5K
22:58 | 7:24/mi
10K· 6.21 mi
45:16
Rank: #8344 (+432)
5K → 10K
22:18 | 7:11/mi
15K· 9.32 mi
1:07:51
Rank: #8308 (+36)
10K → 15K
22:35 | 7:16/mi
20K· 12.43 mi
1:32:36
Rank: #9424 (-1116)
15K → 20K
24:45 | 7:58/mi
Half· 13.11 mi
1:38:04
Rank: #9670 (-246)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
1:59:07
Rank: #11039 (-1369)
Half → 25K
21:03 | 8:41/mi
30K· 18.64 mi
2:29:36
Rank: #13476 (-2437)
25K → 30K
30:29 | 9:49/mi
20M
2:44:09
Rank: #14613 (-1137)
30K → 20M
14:33 | 10:42/mi
21M
2:55:07
Rank: #15131 (-518)
20M → 21M
10:58 | 10:58/mi
35K· 21.75 mi
3:02:30
Rank: #15435 (-304)
21M → 35K
7:23 | 9:52/mi
23M
3:15:10
Rank: #15848 (-413)
35K → 23M
12:40 | 10:07/mi
24M
3:25:33
Rank: #16275 (-427)
23M → 24M
10:23 | 10:23/mi
40K· 24.85 mi
3:35:06
Rank: #16732 (-457)
24M → 40K
9:33 | 11:10/mi
25.2M
3:38:56
Rank: #16830 (-98)
40K → 25.2M
3:50 | 11:07/mi
Finish· 26.22 mi
3:48:24
Rank: #16956 (-126)
25.2M → Finish
9:28 | 9:17/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
Time1:38:04
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time2:10:20
Pace9:57 /mi
📊Positive Split: 32.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2622:587:2422:58
7:24
-
10K
6.21 mi11:11:4445:167:1722:18
7:11
-0:13
15K
9.32 mi11:34:191:07:517:1722:35
7:16
+0:05
20K
12.43 mi11:59:041:32:367:2724:45
7:58
+0:42
Half
13.11 mi12:04:321:38:047:295:28
8:01
+0:03
25K
15.53 mi12:25:351:59:077:4021:03
8:41
+0:40
30K
18.64 mi12:56:042:29:368:0230:29
9:49
+1:08
20M
20.00 mi13:10:372:44:098:1214:33
10:42
+0:53
21M
21.00 mi13:21:352:55:078:2010:58
10:58
+0:16
35K
21.75 mi13:28:583:02:308:237:23
9:52
-1:06
23M
23.00 mi13:41:383:15:108:2912:40
10:07
+0:15
24M
24.00 mi13:52:013:25:338:3410:23
10:23
+0:16
40K
24.85 mi14:01:343:35:068:399:33
11:10
+0:47
25.2M
25.20 mi14:05:243:38:568:413:50
11:07
-0:03
Finish
26.22 mi14:14:523:48:248:439:28
9:17
-1:50

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

7:11 /mi

Average Pace

8:43 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:07

52% of race

Time at Steady Pace

1:10:23

31% of race

Time at Slower Pace

38:54

17% of race

Average Pace: 8:43 /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 mi10:49:2622:587:2422:58
7:24
#8776
10K
6.21 mi11:11:4445:167:1722:18
7:11
#8344
15K
9.32 mi11:34:191:07:517:1722:35
7:16
#8308
20K
12.43 mi11:59:041:32:367:2724:45
7:58
#9424
Half
13.11 mi12:04:321:38:047:295:28
8:01
#9670
25K
15.53 mi12:25:351:59:077:4021:03
8:41
#11039
30K
18.64 mi12:56:042:29:368:0230:29
9:49
#13476
20M
20.00 mi13:10:372:44:098:1214:33
10:42
#14613
21M
21.00 mi13:21:352:55:078:2010:58
10:58
#15131
35K
21.75 mi13:28:583:02:308:237:23
9:52
#15435
23M
23.00 mi13:41:383:15:108:2912:40
10:07
#15848
24M
24.00 mi13:52:013:25:338:3410:23
10:23
#16275
40K
24.85 mi14:01:343:35:068:399:33
11:10
#16732
25.2M
25.20 mi14:05:243:38:568:413:50
11:07
#16830
Finish
26.22 mi14:14:523:48:248:439:28
9:17
#16956
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8776746974698304(Top 31%)7117(Top 47%)7117(Top 318%)
10K6.21 mi3.10 mi8344+4327178+2917178+2917953(Top 30%)6909(Top 46%)6909(Top 308%)
15K9.32 mi3.11 mi8308+367151+277151+278304(Top 31%)7117(Top 47%)7117(Top 318%)
20K12.43 mi3.11 mi9424-11167812-6617812-66113147(Top 49%)9510(Top 63%)9510(Top 424%)
Half13.11 mi0.68 mi9670-2467966-1547966-15414464(Top 54%)10103(Top 67%)10103(Top 451%)
25K15.53 mi2.42 mi11039-13698648-6828648-68217270(Top 65%)11095(Top 73%)11095(Top 495%)
30K18.64 mi3.11 mi13476-24379633-9859633-98520472(Top 77%)12407(Top 82%)12407(Top 554%)
20M20.00 mi1.36 mi14613-113710061-42810061-42822159(Top 83%)13063(Top 86%)13063(Top 583%)
21M21.00 mi1.00 mi15131-51810231-17010231-17020746(Top 78%)12399(Top 82%)12399(Top 553%)
35K21.75 mi0.75 mi15435-30410322-9110322-9120899(Top 79%)12439(Top 82%)12439(Top 555%)
23M23.00 mi1.25 mi15848-41310462-14010462-14020326(Top 76%)12158(Top 80%)12158(Top 543%)
24M24.00 mi1.00 mi16275-42710636-17410636-17421735(Top 82%)12742(Top 84%)12742(Top 569%)
40K24.85 mi0.85 mi16732-45710815-17910815-17922669(Top 85%)13157(Top 87%)13157(Top 587%)
25.2M25.20 mi0.35 mi16830-9810848-3310848-3320680(Top 78%)12231(Top 81%)12231(Top 546%)
Finish26.22 mi1.02 mi16956-12610879-3110879-3119302(Top 73%)11666(Top 77%)11666(Top 521%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8304

Males

7117

M40-44

7117

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7953

Males

6909

M40-44

6909

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8304

Males

7117

M40-44

7117

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13147

Males

9510

M40-44

9510

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14464

Males

10103

M40-44

10103

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17270

Males

11095

M40-44

11095

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20472

Males

12407

M40-44

12407

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22159

Males

13063

M40-44

13063

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20746

Males

12399

M40-44

12399

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20899

Males

12439

M40-44

12439

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20326

Males

12158

M40-44

12158

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21735

Males

12742

M40-44

12742

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22669

Males

13157

M40-44

13157

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20680

Males

12231

M40-44

12231

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

19302

Males

11666

M40-44

11666

Passing Analysis

Category:
Athletes Passed
810
Passed By
8988
Net Change
-8180
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8776
5K → 10K51987+432#8776#8344
10K → 15K158122+36#8344#8308
15K → 20K131129-1116#8308#9424
20K → Half0246-246#9424#9670
Half → 25K111378-1369#9670#11039
25K → 30K62443-2437#11039#13476
30K → 20M61143-1137#13476#14613
20M → 21M11529-518#14613#15131
21M → 35K4308-304#15131#15435
35K → 23M18431-413#15435#15848
23M → 24M15442-427#15848#16275
24M → 40K6463-457#16275#16732
40K → 25.2M10108-98#16732#16830
25.2M → Finish33159-126#16830#16956
TOTALS8108988-8180
📊

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