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BOSTON MARATHON 2023

Alastair Metcalf

Bib: 2753•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Masters (Masters Men)
#0 / 9891
Top 4%
Division (M40-44)
#0 / 2241
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:34
Rank: #1426
Start → 5K
19:34 | 6:18/mi
10K· 6.21 mi
38:40
Rank: #1267 (+159)
5K → 10K
19:06 | 6:09/mi
15K· 9.32 mi
57:54
Rank: #1232 (+35)
10K → 15K
19:14 | 6:11/mi
20K· 12.43 mi
1:18:38
Rank: #1649 (-417)
15K → 20K
20:44 | 6:40/mi
Half· 13.11 mi
1:22:50
Rank: #1615 (+34)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:38:12
Rank: #1575 (+40)
Half → 25K
15:22 | 6:20/mi
30K· 18.64 mi
1:58:27
Rank: #1562 (+13)
25K → 30K
20:15 | 6:31/mi
20M
2:07:23
Rank: #1559 (+3)
30K → 20M
8:56 | 6:34/mi
21M
2:14:40
Rank: #1623 (-64)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:19:45
Rank: #1669 (-46)
21M → 35K
5:05 | 6:48/mi
23M
2:29:06
Rank: #1860 (-191)
35K → 23M
9:21 | 7:28/mi
24M
2:36:03
Rank: #1934 (-74)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:41:59
Rank: #1968 (-34)
24M → 40K
5:56 | 6:56/mi
25.2M
2:44:22
Rank: #1946 (+22)
40K → 25.2M
2:23 | 6:56/mi
Finish· 26.22 mi
2:50:48
Rank: #1908 (+38)
25.2M → Finish
6:26 | 6:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:50
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:27:58
Pace6:43 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2119:346:1819:34
6:18
-
10K
6.21 mi10:39:2738:406:1319:06
6:09
-0:09
15K
9.32 mi10:58:4157:546:1319:14
6:11
+0:02
20K
12.43 mi11:19:251:18:386:2020:44
6:40
+0:29
Half
13.11 mi11:23:371:22:506:194:12
6:09
-0:31
25K
15.53 mi11:38:591:38:126:1915:22
6:20
+0:11
30K
18.64 mi11:59:141:58:276:2120:15
6:31
+0:11
20M
20.00 mi12:08:102:07:236:228:56
6:34
+0:03
21M
21.00 mi12:15:272:14:406:257:17
7:17
+0:43
35K
21.75 mi12:20:322:19:456:265:05
6:48
-0:29
23M
23.00 mi12:29:532:29:066:299:21
7:28
+0:40
24M
24.00 mi12:36:502:36:036:306:57
6:57
-0:31
40K
24.85 mi12:42:462:41:596:315:56
6:56
-0:01
25.2M
25.20 mi12:45:092:44:226:312:23
6:56
0:00
Finish
26.22 mi12:51:352:50:486:316:26
6:19
-0:37

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

6:09 /mi

Average Pace

6:31 /mi

Slowest Pace

7:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:54

49% of race

Time at Steady Pace

49:55

29% of race

Time at Slower Pace

36:59

22% of race

Average Pace: 6:31 /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 mi10:20:2119:346:1819:34
6:18
#1426
10K
6.21 mi10:39:2738:406:1319:06
6:09
#1267
15K
9.32 mi10:58:4157:546:1319:14
6:11
#1232
20K
12.43 mi11:19:251:18:386:2020:44
6:40
#1649
Half
13.11 mi11:23:371:22:506:194:12
6:09
#1615
25K
15.53 mi11:38:591:38:126:1915:22
6:20
#1575
30K
18.64 mi11:59:141:58:276:2120:15
6:31
#1562
20M
20.00 mi12:08:102:07:236:228:56
6:34
#1559
21M
21.00 mi12:15:272:14:406:257:17
7:17
#1623
35K
21.75 mi12:20:322:19:456:265:05
6:48
#1669
23M
23.00 mi12:29:532:29:066:299:21
7:28
#1860
24M
24.00 mi12:36:502:36:036:306:57
6:57
#1934
40K
24.85 mi12:42:462:41:596:315:56
6:56
#1968
25.2M
25.20 mi12:45:092:44:226:312:23
6:56
#1946
Finish
26.22 mi12:51:352:50:486:316:26
6:19
#1908
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1426135513551215(Top 5%)1158(Top 8%)1158(Top 52%)
10K6.21 mi3.10 mi1267+1591202+1531202+1531173(Top 4%)1113(Top 7%)1113(Top 50%)
15K9.32 mi3.11 mi1232+351169+331169+331215(Top 5%)1158(Top 8%)1158(Top 52%)
20K12.43 mi3.11 mi1649-4171578-4091578-4093341(Top 13%)3169(Top 21%)3169(Top 141%)
Half13.11 mi0.68 mi1615+341544+341544+341222(Top 5%)1171(Top 8%)1171(Top 52%)
25K15.53 mi2.42 mi1575+401507+371507+371475(Top 6%)1412(Top 9%)1412(Top 63%)
30K18.64 mi3.11 mi1562+131493+141493+141631(Top 6%)1559(Top 10%)1559(Top 70%)
20M20.00 mi1.36 mi1559+31489+41489+41733(Top 7%)1653(Top 11%)1653(Top 74%)
21M21.00 mi1.00 mi1623-641552-631552-633484(Top 13%)3235(Top 21%)3235(Top 144%)
35K21.75 mi0.75 mi1669-461596-441596-444089(Top 15%)3739(Top 25%)3739(Top 167%)
23M23.00 mi1.25 mi1860-1911780-1841780-1846211(Top 23%)5313(Top 35%)5313(Top 237%)
24M24.00 mi1.00 mi1934-741852-721852-724384(Top 16%)3959(Top 26%)3959(Top 177%)
40K24.85 mi0.85 mi1968-341884-321884-323488(Top 13%)3167(Top 21%)3167(Top 141%)
25.2M25.20 mi0.35 mi1946+221862+221862+221550(Top 6%)1456(Top 10%)1456(Top 65%)
Finish26.22 mi1.02 mi1908+381825+371825+371672(Top 6%)1572(Top 10%)1572(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1215

Males

1158

M40-44

1158

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1173

Males

1113

M40-44

1113

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1215

Males

1158

M40-44

1158

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3341

Males

3169

M40-44

3169

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1222

Males

1171

M40-44

1171

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1475

Males

1412

M40-44

1412

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1631

Males

1559

M40-44

1559

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1733

Males

1653

M40-44

1653

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3484

Males

3235

M40-44

3235

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4089

Males

3739

M40-44

3739

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6211

Males

5313

M40-44

5313

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4384

Males

3959

M40-44

3959

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3488

Males

3167

M40-44

3167

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1550

Males

1456

M40-44

1456

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1672

Males

1572

M40-44

1572

Passing Analysis

Category:
Athletes Passed
529
Passed By
1011
Net Change
-482
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1426
5K → 10K17314+159#1426#1267
10K → 15K5722+35#1267#1232
15K → 20K3420-417#1232#1649
20K → Half373+34#1649#1615
Half → 25K5616+40#1615#1575
25K → 30K5845+13#1575#1562
30K → 20M2825+3#1562#1559
20M → 21M973-64#1559#1623
21M → 35K450-46#1623#1669
35K → 23M5196-191#1669#1860
23M → 24M882-74#1860#1934
24M → 40K1549-34#1934#1968
40K → 25.2M275+22#1968#1946
25.2M → Finish4911+38#1946#1908
TOTALS5291011-482
📊

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