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BOSTON MARATHON 2023

Grant Alexander

Bib: 1006•M

DC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:46
Rank: #284
Start → 5K
17:46 | 5:43/mi
10K· 6.21 mi
35:19
Rank: #270 (+14)
5K → 10K
17:33 | 5:39/mi
15K· 9.32 mi
52:56
Rank: #256 (+14)
10K → 15K
17:37 | 5:40/mi
20K· 12.43 mi
1:10:28
Rank: #225 (+31)
15K → 20K
17:32 | 5:39/mi
Half· 13.11 mi
1:14:17
Rank: #218 (+7)
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:28:18
Rank: #226 (-8)
Half → 25K
14:01 | 5:47/mi
30K· 18.64 mi
1:47:06
Rank: #248 (-22)
25K → 30K
18:48 | 6:03/mi
20M
1:55:27
Rank: #264 (-16)
30K → 20M
8:21 | 6:09/mi
21M
2:02:46
Rank: #311 (-47)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:07:32
Rank: #323 (-12)
21M → 35K
4:46 | 6:22/mi
23M
2:16:14
Rank: #387 (-64)
35K → 23M
8:42 | 6:57/mi
24M
2:23:03
Rank: #433 (-46)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:29:19
Rank: #478 (-45)
24M → 40K
6:16 | 7:20/mi
25.2M
2:32:23
Rank: #536 (-58)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
2:38:58
Rank: #572 (-36)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:17
Pace5:40 /mi
2nd Half
Distance13.11 mi
Time1:24:41
Pace6:28 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2417:465:4317:46
5:43
-
10K
6.21 mi10:35:5735:195:4117:33
5:39
-0:04
15K
9.32 mi10:53:3452:565:4117:37
5:40
+0:01
20K
12.43 mi11:11:061:10:285:4017:32
5:39
-0:01
Half
13.11 mi11:14:551:14:175:403:49
5:36
-0:03
25K
15.53 mi11:28:561:28:185:4114:01
5:47
+0:11
30K
18.64 mi11:47:441:47:065:4518:48
6:03
+0:16
20M
20.00 mi11:56:051:55:275:468:21
6:09
+0:06
21M
21.00 mi12:03:242:02:465:517:19
7:19
+1:10
35K
21.75 mi12:08:102:07:325:524:46
6:22
-0:57
23M
23.00 mi12:16:522:16:145:558:42
6:57
+0:35
24M
24.00 mi12:23:412:23:035:586:49
6:49
-0:08
40K
24.85 mi12:29:572:29:196:006:16
7:20
+0:31
25.2M
25.20 mi12:33:012:32:236:033:04
8:54
+1:34
Finish
26.22 mi12:39:362:38:586:046:35
6:28
-2:26

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

5:36 /mi

Average Pace

6:04 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:31

36% of race

Time at Steady Pace

1:10:17

44% of race

Time at Slower Pace

32:10

20% of race

Average Pace: 6:04 /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 mi10:18:2417:465:4317:46
5:43
#284
10K
6.21 mi10:35:5735:195:4117:33
5:39
#270
15K
9.32 mi10:53:3452:565:4117:37
5:40
#256
20K
12.43 mi11:11:061:10:285:4017:32
5:39
#225
Half
13.11 mi11:14:551:14:175:403:49
5:36
#218
25K
15.53 mi11:28:561:28:185:4114:01
5:47
#226
30K
18.64 mi11:47:441:47:065:4518:48
6:03
#248
20M
20.00 mi11:56:051:55:275:468:21
6:09
#264
21M
21.00 mi12:03:242:02:465:517:19
7:19
#311
35K
21.75 mi12:08:102:07:325:524:46
6:22
#323
23M
23.00 mi12:16:522:16:145:558:42
6:57
#387
24M
24.00 mi12:23:412:23:035:586:49
6:49
#433
40K
24.85 mi12:29:572:29:196:006:16
7:20
#478
25.2M
25.20 mi12:33:012:32:236:033:04
8:54
#536
Finish
26.22 mi12:39:362:38:586:046:35
6:28
#572
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi284284284216(Top 0.8%)188(Top 1%)188(Top 4%)
10K6.21 mi3.10 mi270+14243+41243+41246(Top 0.9%)216(Top 1%)216(Top 4%)
15K9.32 mi3.11 mi256+14229+14229+14216(Top 0.8%)188(Top 1%)188(Top 4%)
20K12.43 mi3.11 mi225+31198+31198+31162(Top 0.6%)140(Top 0.9%)140(Top 3%)
Half13.11 mi0.68 mi218+7192+6192+6194(Top 0.7%)172(Top 1%)172(Top 3%)
25K15.53 mi2.42 mi226-8199-7199-7250(Top 0.9%)227(Top 1%)227(Top 4%)
30K18.64 mi3.11 mi248-22223-24223-24441(Top 2%)409(Top 3%)409(Top 8%)
20M20.00 mi1.36 mi264-16237-14237-14559(Top 2%)525(Top 3%)525(Top 10%)
21M21.00 mi1.00 mi311-47280-43280-433648(Top 14%)3379(Top 22%)3379(Top 64%)
35K21.75 mi0.75 mi323-12292-12292-121807(Top 7%)1713(Top 11%)1713(Top 32%)
23M23.00 mi1.25 mi387-64354-62354-623479(Top 13%)3220(Top 21%)3220(Top 61%)
24M24.00 mi1.00 mi433-46398-44398-443700(Top 14%)3386(Top 22%)3386(Top 64%)
40K24.85 mi0.85 mi478-45442-44442-445575(Top 21%)4722(Top 31%)4722(Top 89%)
25.2M25.20 mi0.35 mi536-58499-57499-5711750(Top 44%)8093(Top 53%)8093(Top 153%)
Finish26.22 mi1.02 mi572-36533-34533-342268(Top 9%)2096(Top 14%)2096(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.8%
×21stories
+97ft-345ft

Overall

216

Males

188

M18-39

188

5K→10K

3.1 - 6.2 mi

Top 0.9%
×5stories
+79ft-138ft

Overall

246

Males

216

M18-39

216

10K→15K

6.2 - 9.3 mi

Top 0.8%
×3stories
+67ft-78ft

Overall

216

Males

188

M18-39

188

15K→20K

9.3 - 12.4 mi

Top 0.6%
×5stories
+106ft-86ft

Overall

162

Males

140

M18-39

140

20K→Half

12.4 - 13.1 mi

Top 0.7%
×2stories
+19ft-37ft

Overall

194

Males

172

M18-39

172

Half→25K

13.1 - 15.5 mi

Top 0.9%
×4stories
+66ft-88ft

Overall

250

Males

227

M18-39

227

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

441

Males

409

M18-39

409

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

559

Males

525

M18-39

525

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3648

Males

3379

M18-39

3379

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1807

Males

1713

M18-39

1713

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3479

Males

3220

M18-39

3220

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3700

Males

3386

M18-39

3386

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5575

Males

4722

M18-39

4722

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11750

Males

8093

M18-39

8093

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2268

Males

2096

M18-39

2096

Passing Analysis

Category:
Athletes Passed
117
Passed By
405
Net Change
-288
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#284
5K → 10K4632+14#284#270
10K → 15K162+14#270#256
15K → 20K310+31#256#225
20K → Half70+7#225#218
Half → 25K412-8#218#226
25K → 30K527-22#226#248
30K → 20M117-16#248#264
20M → 21M148-47#264#311
21M → 35K012-12#311#323
35K → 23M165-64#323#387
23M → 24M046-46#387#433
24M → 40K146-45#433#478
40K → 25.2M058-58#478#536
25.2M → Finish440-36#536#572
TOTALS117405-288
📊

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