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BOSTON MARATHON 2023

Michael Alexander

Bib: 22875•M

LA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:52
Rank: #16319
Start → 5K
25:52 | 8:20/mi
10K· 6.21 mi
51:12
Rank: #16107 (+212)
5K → 10K
25:20 | 8:09/mi
15K· 9.32 mi
1:16:52
Rank: #16155 (-48)
10K → 15K
25:40 | 8:16/mi
20K· 12.43 mi
1:42:54
Rank: #16121 (+34)
15K → 20K
26:02 | 8:23/mi
Half· 13.11 mi
1:48:32
Rank: #16121
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:08:44
Rank: #15952 (+169)
Half → 25K
20:12 | 8:20/mi
30K· 18.64 mi
2:35:52
Rank: #15881 (+71)
25K → 30K
27:08 | 8:44/mi
20M
2:48:00
Rank: #15908 (-27)
30K → 20M
12:08 | 8:56/mi
21M
2:57:46
Rank: #15957 (-49)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
3:04:07
Rank: #15904 (+53)
21M → 35K
6:21 | 8:29/mi
23M
3:15:11
Rank: #15852 (+52)
35K → 23M
11:04 | 8:50/mi
24M
3:23:47
Rank: #15815 (+37)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:31:30
Rank: #15831 (-16)
24M → 40K
7:43 | 9:02/mi
25.2M
3:34:50
Rank: #15818 (+13)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:43:16
Rank: #15740 (+78)
25.2M → Finish
8:26 | 8:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:32
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:54:44
Pace8:45 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4125:528:2025:52
8:20
-
10K
6.21 mi11:45:0151:128:1425:20
8:09
-0:11
15K
9.32 mi12:10:411:16:528:1525:40
8:16
+0:07
20K
12.43 mi12:36:431:42:548:1726:02
8:23
+0:07
Half
13.11 mi12:42:211:48:328:175:38
8:15
-0:08
25K
15.53 mi13:02:332:08:448:1720:12
8:20
+0:05
30K
18.64 mi13:29:412:35:528:2227:08
8:44
+0:24
20M
20.00 mi13:41:492:48:008:2412:08
8:56
+0:12
21M
21.00 mi13:51:352:57:468:289:46
9:46
+0:50
35K
21.75 mi13:57:563:04:078:286:21
8:29
-1:17
23M
23.00 mi14:09:003:15:118:2911:04
8:50
+0:21
24M
24.00 mi14:17:363:23:478:298:36
8:36
-0:14
40K
24.85 mi14:25:193:31:308:317:43
9:02
+0:26
25.2M
25.20 mi14:28:393:34:508:323:20
9:40
+0:38
Finish
26.22 mi14:37:053:43:168:318:26
8:17
-1:23

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

8:09 /mi

Average Pace

8:31 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:27

91% of race

Time at Steady Pace

7:43

3% of race

Time at Slower Pace

13:06

6% of race

Average Pace: 8:31 /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 mi11:19:4125:528:2025:52
8:20
#16319
10K
6.21 mi11:45:0151:128:1425:20
8:09
#16107
15K
9.32 mi12:10:411:16:528:1525:40
8:16
#16155
20K
12.43 mi12:36:431:42:548:1726:02
8:23
#16121
Half
13.11 mi12:42:211:48:328:175:38
8:15
#16121
25K
15.53 mi13:02:332:08:448:1720:12
8:20
#15952
30K
18.64 mi13:29:412:35:528:2227:08
8:44
#15881
20M
20.00 mi13:41:492:48:008:2412:08
8:56
#15908
21M
21.00 mi13:51:352:57:468:289:46
9:46
#15957
35K
21.75 mi13:57:563:04:078:286:21
8:29
#15904
23M
23.00 mi14:09:003:15:118:2911:04
8:50
#15852
24M
24.00 mi14:17:363:23:478:298:36
8:36
#15815
40K
24.85 mi14:25:193:31:308:317:43
9:02
#15831
25.2M
25.20 mi14:28:393:34:508:323:20
9:40
#15818
Finish
26.22 mi14:37:053:43:168:318:26
8:17
#15740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi16319108181081816282(Top 61%)10800(Top 71%)10800(Top 5070%)
10K6.21 mi3.10 mi16107+21210746+7210746+7215924(Top 60%)10679(Top 70%)10679(Top 5014%)
15K9.32 mi3.11 mi16155-4810754-810754-816282(Top 61%)10800(Top 71%)10800(Top 5070%)
20K12.43 mi3.11 mi16121+3410721+3310721+3316106(Top 60%)10672(Top 70%)10672(Top 5010%)
Half13.11 mi0.68 mi1612110716+510716+516152(Top 61%)10737(Top 71%)10737(Top 5041%)
25K15.53 mi2.42 mi15952+16910626+9010626+9015131(Top 57%)10184(Top 67%)10184(Top 4781%)
30K18.64 mi3.11 mi15881+7110560+6610560+6615687(Top 59%)10346(Top 68%)10346(Top 4857%)
20M20.00 mi1.36 mi15908-2710542+1810542+1816145(Top 61%)10468(Top 69%)10468(Top 4915%)
21M21.00 mi1.00 mi15957-4910548-610548-617099(Top 64%)10829(Top 71%)10829(Top 5084%)
35K21.75 mi0.75 mi15904+5310511+3710511+3715214(Top 57%)9960(Top 66%)9960(Top 4676%)
23M23.00 mi1.25 mi15852+5210463+4810463+4815189(Top 57%)9890(Top 65%)9890(Top 4643%)
24M24.00 mi1.00 mi15815+3710424+3910424+3915041(Top 56%)9772(Top 64%)9772(Top 4588%)
40K24.85 mi0.85 mi15831-1610430-610430-616247(Top 61%)10228(Top 67%)10228(Top 4802%)
25.2M25.20 mi0.35 mi15818+1310417+1310417+1315911(Top 60%)10075(Top 66%)10075(Top 4730%)
Finish26.22 mi1.02 mi15740+7810381+3610381+3613936(Top 52%)9223(Top 61%)9223(Top 4330%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16282

Males

10800

M70-74

10800

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15924

Males

10679

M70-74

10679

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16282

Males

10800

M70-74

10800

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16106

Males

10672

M70-74

10672

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16152

Males

10737

M70-74

10737

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15131

Males

10184

M70-74

10184

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15687

Males

10346

M70-74

10346

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16145

Males

10468

M70-74

10468

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17099

Males

10829

M70-74

10829

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15214

Males

9960

M70-74

9960

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15189

Males

9890

M70-74

9890

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15041

Males

9772

M70-74

9772

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16247

Males

10228

M70-74

10228

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15911

Males

10075

M70-74

10075

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13936

Males

9223

M70-74

9223

Passing Analysis

Category:
Athletes Passed
1845
Passed By
1266
Net Change
+579
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16319
5K → 10K404192+212#16319#16107
10K → 15K178226-48#16107#16155
15K → 20K182148+34#16155#16121
20K → Half41410#16121#16121
Half → 25K21748+169#16121#15952
25K → 30K209138+71#15952#15881
30K → 20M86113-27#15881#15908
20M → 21M64113-49#15908#15957
21M → 35K7623+53#15957#15904
35K → 23M11361+52#15904#15852
23M → 24M9255+37#15852#15815
24M → 40K5369-16#15815#15831
40K → 25.2M3219+13#15831#15818
25.2M → Finish9820+78#15818#15740
TOTALS18451266+579
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing