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BOSTON MARATHON 2023

Gareth Armstrong

Bib: 30649•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:40
Rank: #23930
Start → 5K
31:40 | 10:12/mi
10K· 6.21 mi
1:04:13
Rank: #24340 (-410)
5K → 10K
32:33 | 10:29/mi
15K· 9.32 mi
1:38:29
Rank: #24755 (-415)
10K → 15K
34:16 | 11:02/mi
20K· 12.43 mi
2:16:04
Rank: #25131 (-376)
15K → 20K
37:35 | 12:06/mi
Half· 13.11 mi
2:24:06
Rank: #25185 (-54)
20K → Half
8:02 | 11:46/mi
25K· 15.53 mi
2:53:41
Rank: #25247 (-62)
Half → 25K
29:35 | 12:12/mi
30K· 18.64 mi
3:33:10
Rank: #25259 (-12)
25K → 30K
39:29 | 12:43/mi
20M
3:50:06
Rank: #25236 (+23)
30K → 20M
16:56 | 12:28/mi
21M
4:03:27
Rank: #25193 (+43)
20M → 21M
13:21 | 13:21/mi
35K· 21.75 mi
4:12:14
Rank: #25175 (+18)
21M → 35K
8:47 | 11:44/mi
23M
4:28:21
Rank: #25184 (-9)
35K → 23M
16:07 | 12:52/mi
24M
4:40:46
Rank: #25181 (+3)
23M → 24M
12:25 | 12:25/mi
40K· 24.85 mi
4:52:57
Rank: #25228 (-47)
24M → 40K
12:11 | 14:15/mi
25.2M
4:58:07
Rank: #25241 (-13)
40K → 25.2M
5:10 | 14:59/mi
Finish· 26.22 mi
5:11:36
Rank: #25304 (-63)
25.2M → Finish
13:29 | 13:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:24:06
Pace11:00 /mi
2nd Half
Distance13.11 mi
Time2:47:30
Pace12:47 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2631:4010:1231:40
10:12
-
10K
6.21 mi12:22:591:04:1310:2032:33
10:29
+0:17
15K
9.32 mi12:57:151:38:2910:3434:16
11:02
+0:33
20K
12.43 mi13:34:502:16:0410:5737:35
12:06
+1:04
Half
13.11 mi13:42:522:24:0611:008:02
11:46
-0:20
25K
15.53 mi14:12:272:53:4111:1129:35
12:12
+0:26
30K
18.64 mi14:51:563:33:1011:2639:29
12:43
+0:31
20M
20.00 mi15:08:523:50:0611:3016:56
12:28
-0:15
21M
21.00 mi15:22:134:03:2711:3613:21
13:21
+0:53
35K
21.75 mi15:31:004:12:1411:368:47
11:44
-1:37
23M
23.00 mi15:47:074:28:2111:4016:07
12:52
+1:08
24M
24.00 mi15:59:324:40:4611:4212:25
12:25
-0:27
40K
24.85 mi16:11:434:52:5711:4712:11
14:15
+1:50
25.2M
25.20 mi16:16:534:58:0711:505:10
14:59
+0:44
Finish
26.22 mi16:30:225:11:3611:5413:29
13:14
-1:45

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

10:12 /mi

Average Pace

11:54 /mi

Slowest Pace

14:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:18

37% of race

Time at Steady Pace

2:32:07

49% of race

Time at Slower Pace

44:11

14% of race

Average Pace: 11:53 /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 mi11:50:2631:4010:1231:40
10:12
#23930
10K
6.21 mi12:22:591:04:1310:2032:33
10:29
#24340
15K
9.32 mi12:57:151:38:2910:3434:16
11:02
#24755
20K
12.43 mi13:34:502:16:0410:5737:35
12:06
#25131
Half
13.11 mi13:42:522:24:0611:008:02
11:46
#25185
25K
15.53 mi14:12:272:53:4111:1129:35
12:12
#25247
30K
18.64 mi14:51:563:33:1011:2639:29
12:43
#25259
20M
20.00 mi15:08:523:50:0611:3016:56
12:28
#25236
21M
21.00 mi15:22:134:03:2711:3613:21
13:21
#25193
35K
21.75 mi15:31:004:12:1411:368:47
11:44
#25175
23M
23.00 mi15:47:074:28:2111:4016:07
12:52
#25184
24M
24.00 mi15:59:324:40:4611:4212:25
12:25
#25181
40K
24.85 mi16:11:434:52:5711:4712:11
14:15
#25228
25.2M
25.20 mi16:16:534:58:0711:505:10
14:59
#25241
Finish
26.22 mi16:30:225:11:3611:5413:29
13:14
#25304
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23930140571405725213(Top 95%)14612(Top 96%)14612(Top 276%)
10K6.21 mi3.10 mi24340-41014248-19114248-19124646(Top 93%)14378(Top 95%)14378(Top 272%)
15K9.32 mi3.11 mi24755-41514422-17414422-17425213(Top 95%)14612(Top 96%)14612(Top 276%)
20K12.43 mi3.11 mi25131-37614578-15614578-15625714(Top 97%)14796(Top 97%)14796(Top 280%)
Half13.11 mi0.68 mi25185-5414603-2514603-2525698(Top 97%)14773(Top 97%)14773(Top 280%)
25K15.53 mi2.42 mi25247-6214614-1114614-1125313(Top 95%)14600(Top 96%)14600(Top 276%)
30K18.64 mi3.11 mi25259-1214603+1114603+1125179(Top 95%)14487(Top 95%)14487(Top 274%)
20M20.00 mi1.36 mi25236+2314586+1714586+1724697(Top 93%)14233(Top 94%)14233(Top 269%)
21M21.00 mi1.00 mi25193+4314564+2214564+2224442(Top 92%)14109(Top 93%)14109(Top 267%)
35K21.75 mi0.75 mi25175+1814547+1714547+1724405(Top 92%)14044(Top 93%)14044(Top 266%)
23M23.00 mi1.25 mi25184-914539+814539+824960(Top 94%)14325(Top 94%)14325(Top 271%)
24M24.00 mi1.00 mi25181+314531+814531+824965(Top 94%)14283(Top 94%)14283(Top 270%)
40K24.85 mi0.85 mi25228-4714549-1814549-1825822(Top 97%)14711(Top 97%)14711(Top 278%)
25.2M25.20 mi0.35 mi25241-1314557-814557-825692(Top 97%)14642(Top 96%)14642(Top 277%)
Finish26.22 mi1.02 mi25304-6314586-2914586-2926081(Top 98%)14852(Top 98%)14852(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

25213

Males

14612

M18-39

14612

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24646

Males

14378

M18-39

14378

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

25213

Males

14612

M18-39

14612

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

25714

Males

14796

M18-39

14796

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

25698

Males

14773

M18-39

14773

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

25313

Males

14600

M18-39

14600

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25179

Males

14487

M18-39

14487

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24697

Males

14233

M18-39

14233

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

24442

Males

14109

M18-39

14109

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

24405

Males

14044

M18-39

14044

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

24960

Males

14325

M18-39

14325

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

24965

Males

14283

M18-39

14283

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25822

Males

14711

M18-39

14711

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25692

Males

14642

M18-39

14642

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

26081

Males

14852

M18-39

14852

Passing Analysis

Category:
Athletes Passed
431
Passed By
1805
Net Change
-1374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23930
5K → 10K62472-410#23930#24340
10K → 15K34449-415#24340#24755
15K → 20K18394-376#24755#25131
20K → Half660-54#25131#25185
Half → 25K45107-62#25185#25247
25K → 30K7385-12#25247#25259
30K → 20M3916+23#25259#25236
20M → 21M5714+43#25236#25193
21M → 35K2911+18#25193#25175
35K → 23M3241-9#25175#25184
23M → 24M2118+3#25184#25181
24M → 40K653-47#25181#25228
40K → 25.2M316-13#25228#25241
25.2M → Finish669-63#25241#25304
TOTALS4311805-1374
📊

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