Boston Marathon logo
BOSTON MARATHON 2023

Alex Mcmillin

Bib: 18081•M

ON

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
25:28
Rank: #15448
Start → 5K
25:28 | 8:12/mi
10K· 6.21 mi
50:21
Rank: #15139 (+309)
5K → 10K
24:53 | 8:01/mi
15K· 9.32 mi
1:15:10
Rank: #14854 (+285)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:40:00
Rank: #14439 (+415)
15K → 20K
24:50 | 8:00/mi
Half· 13.11 mi
1:45:25
Rank: #14433 (+6)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:05:22
Rank: #14429 (+4)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:32:43
Rank: #14748 (-319)
25K → 30K
27:21 | 8:48/mi
20M
2:44:57
Rank: #14891 (-143)
30K → 20M
12:14 | 9:00/mi
21M
2:54:43
Rank: #15018 (-127)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
3:01:12
Rank: #15057 (-39)
21M → 35K
6:29 | 8:40/mi
23M
3:12:30
Rank: #15090 (-33)
35K → 23M
11:18 | 9:02/mi
24M
3:21:10
Rank: #15097 (-7)
23M → 24M
8:40 | 8:40/mi
40K· 24.85 mi
3:28:49
Rank: #15123 (-26)
24M → 40K
7:39 | 8:57/mi
25.2M
3:32:14
Rank: #15136 (-13)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:40:58
Rank: #15173 (-37)
25.2M → Finish
8:44 | 8:34/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
Time1:45:25
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:55:33
Pace8:49 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3425:288:1225:28
8:12
-
10K
6.21 mi11:41:2750:218:0624:53
8:01
-0:11
15K
9.32 mi12:06:161:15:108:0424:49
7:59
-0:02
20K
12.43 mi12:31:061:40:008:0324:50
8:00
+0:01
Half
13.11 mi12:36:311:45:258:025:25
7:56
-0:04
25K
15.53 mi12:56:282:05:228:0419:57
8:14
+0:18
30K
18.64 mi13:23:492:32:438:1227:21
8:48
+0:34
20M
20.00 mi13:36:032:44:578:1512:14
9:00
+0:12
21M
21.00 mi13:45:492:54:438:199:46
9:46
+0:46
35K
21.75 mi13:52:183:01:128:206:29
8:40
-1:06
23M
23.00 mi14:03:363:12:308:2211:18
9:02
+0:22
24M
24.00 mi14:12:163:21:108:238:40
8:40
-0:22
40K
24.85 mi14:19:553:28:498:247:39
8:57
+0:17
25.2M
25.20 mi14:23:203:32:148:253:25
9:54
+0:57
Finish
26.22 mi14:32:043:40:588:268:44
8:34
-1:20

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

7:56 /mi

Average Pace

8:26 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:22

57% of race

Time at Steady Pace

58:53

27% of race

Time at Slower Pace

36:43

17% of race

Average Pace: 8:26 /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 mi11:16:3425:288:1225:28
8:12
#15448
10K
6.21 mi11:41:2750:218:0624:53
8:01
#15139
15K
9.32 mi12:06:161:15:108:0424:49
7:59
#14854
20K
12.43 mi12:31:061:40:008:0324:50
8:00
#14439
Half
13.11 mi12:36:311:45:258:025:25
7:56
#14433
25K
15.53 mi12:56:282:05:228:0419:57
8:14
#14429
30K
18.64 mi13:23:492:32:438:1227:21
8:48
#14748
20M
20.00 mi13:36:032:44:578:1512:14
9:00
#14891
21M
21.00 mi13:45:492:54:438:199:46
9:46
#15018
35K
21.75 mi13:52:183:01:128:206:29
8:40
#15057
23M
23.00 mi14:03:363:12:308:2211:18
9:02
#15090
24M
24.00 mi14:12:163:21:108:238:40
8:40
#15097
40K
24.85 mi14:19:553:28:498:247:39
8:57
#15123
25.2M
25.20 mi14:23:203:32:148:253:25
9:54
#15136
Finish
26.22 mi14:32:043:40:588:268:44
8:34
#15173
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15448104961049614283(Top 54%)10023(Top 66%)10023(Top 705%)
10K6.21 mi3.10 mi15139+30910384+11210384+11214853(Top 56%)10255(Top 68%)10255(Top 721%)
15K9.32 mi3.11 mi14854+28510265+11910265+11914283(Top 54%)10023(Top 66%)10023(Top 705%)
20K12.43 mi3.11 mi14439+41510087+17810087+17813358(Top 50%)9609(Top 63%)9609(Top 676%)
Half13.11 mi0.68 mi14433+610081+610081+613864(Top 52%)9858(Top 65%)9858(Top 693%)
25K15.53 mi2.42 mi14429+410050+3110050+3114429(Top 54%)9944(Top 66%)9944(Top 699%)
30K18.64 mi3.11 mi14748-31910146-9610146-9616073(Top 60%)10506(Top 69%)10506(Top 739%)
20M20.00 mi1.36 mi14891-14310173-2710173-2716534(Top 62%)10623(Top 70%)10623(Top 747%)
21M21.00 mi1.00 mi15018-12710192-1910192-1917095(Top 64%)10825(Top 71%)10825(Top 761%)
35K21.75 mi0.75 mi15057-3910189+310189+316199(Top 61%)10361(Top 68%)10361(Top 729%)
23M23.00 mi1.25 mi15090-3310172+1710172+1716164(Top 61%)10311(Top 68%)10311(Top 725%)
24M24.00 mi1.00 mi15097-710166+610166+615439(Top 58%)9917(Top 65%)9917(Top 697%)
40K24.85 mi0.85 mi15123-2610155+1110155+1115832(Top 59%)10053(Top 66%)10053(Top 707%)
25.2M25.20 mi0.35 mi15136-1310148+710148+716958(Top 64%)10535(Top 69%)10535(Top 741%)
Finish26.22 mi1.02 mi15173-3710141+710141+715800(Top 59%)10084(Top 66%)10084(Top 709%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14283

Males

10023

M55-59

10023

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14853

Males

10255

M55-59

10255

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14283

Males

10023

M55-59

10023

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13358

Males

9609

M55-59

9609

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13864

Males

9858

M55-59

9858

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14429

Males

9944

M55-59

9944

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

16073

Males

10506

M55-59

10506

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

16534

Males

10623

M55-59

10623

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17095

Males

10825

M55-59

10825

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16199

Males

10361

M55-59

10361

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16164

Males

10311

M55-59

10311

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

15439

Males

9917

M55-59

9917

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15832

Males

10053

M55-59

10053

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16958

Males

10535

M55-59

10535

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15800

Males

10084

M55-59

10084

Passing Analysis

Category:
Athletes Passed
1959
Passed By
1684
Net Change
+275
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15448
5K → 10K496187+309#15448#15139
10K → 15K35267+285#15139#14854
15K → 20K44530+415#14854#14439
20K → Half3731+6#14439#14433
Half → 25K150146+4#14433#14429
25K → 30K81400-319#14429#14748
30K → 20M43186-143#14748#14891
20M → 21M51178-127#14891#15018
21M → 35K3978-39#15018#15057
35K → 23M6598-33#15057#15090
23M → 24M5865-7#15090#15097
24M → 40K5682-26#15097#15123
40K → 25.2M3144-13#15123#15136
25.2M → Finish5592-37#15136#15173
TOTALS19591684+275
📊

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