Boston Marathon logo
BOSTON MARATHON 2024

Alastair Metcalf

Bib: 1756•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 3%
Gender (Male)
#0 / 14578
Top 6%
Masters (Masters Men)
#0 / 9729
Top 1%
Division (M40-44)
#0 / 2009
Top 5%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:09
Rank: #1456
Start → 5K
19:09 | 6:10/mi
10K· 6.21 mi
38:10
Rank: #1342 (+114)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:22
Rank: #1304 (+38)
10K → 15K
19:12 | 6:11/mi
20K· 12.43 mi
1:17:01
Rank: #1317 (-13)
15K → 20K
19:39 | 6:19/mi
Half· 13.11 mi
1:21:13
Rank: #1305 (+12)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:36:34
Rank: #1263 (+42)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:56:42
Rank: #1172 (+91)
25K → 30K
20:08 | 6:29/mi
20M
2:05:30
Rank: #1089 (+83)
30K → 20M
8:48 | 6:29/mi
21M
2:12:22
Rank: #1042 (+47)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:17:10
Rank: #1026 (+16)
21M → 35K
4:48 | 6:25/mi
23M
2:25:18
Rank: #975 (+51)
35K → 23M
8:08 | 6:30/mi
24M
2:31:44
Rank: #943 (+32)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:37:19
Rank: #907 (+36)
24M → 40K
5:35 | 6:32/mi
25.2M
2:39:49
Rank: #894 (+13)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:46:24
Rank: #877 (+17)
25.2M → Finish
6:35 | 6:28/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
Time1:21:13
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:25:11
Pace6:30 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:096:1019:09
6:10
-
10K
6.21 mi10:38:5538:106:0919:01
6:07
-0:03
15K
9.32 mi10:58:0757:226:0919:12
6:11
+0:04
20K
12.43 mi11:17:461:17:016:1219:39
6:19
+0:08
Half
13.11 mi11:21:581:21:136:124:12
6:09
-0:10
25K
15.53 mi11:37:191:36:346:1315:21
6:20
+0:11
30K
18.64 mi11:57:271:56:426:1620:08
6:29
+0:09
20M
20.00 mi12:06:152:05:306:168:48
6:29
0:00
21M
21.00 mi12:13:072:12:226:186:52
6:52
+0:23
35K
21.75 mi12:17:552:17:106:184:48
6:25
-0:27
23M
23.00 mi12:26:032:25:186:198:08
6:30
+0:05
24M
24.00 mi12:32:292:31:446:196:26
6:26
-0:04
40K
24.85 mi12:38:042:37:196:205:35
6:32
+0:06
25.2M
25.20 mi12:40:342:39:496:212:30
7:15
+0:43
Finish
26.22 mi12:47:092:46:246:216:35
6:28
-0:47

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

6:07 /mi

Average Pace

6:21 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:02

94% of race

Time at Steady Pace

6:52

4% of race

Time at Slower Pace

2:30

2% of race

Average Pace: 6:21 /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 mi10:19:5419:096:1019:09
6:10
#1456
10K
6.21 mi10:38:5538:106:0919:01
6:07
#1342
15K
9.32 mi10:58:0757:226:0919:12
6:11
#1304
20K
12.43 mi11:17:461:17:016:1219:39
6:19
#1317
Half
13.11 mi11:21:581:21:136:124:12
6:09
#1305
25K
15.53 mi11:37:191:36:346:1315:21
6:20
#1263
30K
18.64 mi11:57:271:56:426:1620:08
6:29
#1172
20M
20.00 mi12:06:152:05:306:168:48
6:29
#1089
21M
21.00 mi12:13:072:12:226:186:52
6:52
#1042
35K
21.75 mi12:17:552:17:106:184:48
6:25
#1026
23M
23.00 mi12:26:032:25:186:198:08
6:30
#975
24M
24.00 mi12:32:292:31:446:196:26
6:26
#943
40K
24.85 mi12:38:042:37:196:205:35
6:32
#907
25.2M
25.20 mi12:40:342:39:496:212:30
7:15
#894
Finish
26.22 mi12:47:092:46:246:216:35
6:28
#877
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1456140414041310(Top 5%)1271(Top 9%)1271(Top 63%)
10K6.21 mi3.10 mi1342+1141299+1051299+1051215(Top 5%)1176(Top 8%)1176(Top 59%)
15K9.32 mi3.11 mi1304+381264+351264+351310(Top 5%)1271(Top 9%)1271(Top 63%)
20K12.43 mi3.11 mi1317-131275-111275-111432(Top 6%)1386(Top 10%)1386(Top 69%)
Half13.11 mi0.68 mi1305+121263+121263+121155(Top 5%)1119(Top 8%)1119(Top 56%)
25K15.53 mi2.42 mi1263+421220+431220+431217(Top 5%)1173(Top 8%)1173(Top 58%)
30K18.64 mi3.11 mi1172+911132+881132+88999(Top 4%)955(Top 7%)955(Top 48%)
20M20.00 mi1.36 mi1089+831050+821050+82785(Top 3%)741(Top 5%)741(Top 37%)
21M21.00 mi1.00 mi1042+471001+491001+49819(Top 3%)773(Top 5%)773(Top 38%)
35K21.75 mi0.75 mi1026+16985+16985+161042(Top 4%)983(Top 7%)983(Top 49%)
23M23.00 mi1.25 mi975+51935+50935+50682(Top 3%)646(Top 4%)646(Top 32%)
24M24.00 mi1.00 mi943+32901+34901+34831(Top 3%)782(Top 5%)782(Top 39%)
40K24.85 mi0.85 mi907+36866+35866+35783(Top 3%)730(Top 5%)730(Top 36%)
25.2M25.20 mi0.35 mi894+13853+13853+13933(Top 4%)860(Top 6%)860(Top 43%)
Finish26.22 mi1.02 mi877+17835+18835+181272(Top 5%)1156(Top 8%)1156(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1310

Males

1271

M40-44

1271

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1215

Males

1176

M40-44

1176

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1310

Males

1271

M40-44

1271

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1432

Males

1386

M40-44

1386

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1155

Males

1119

M40-44

1119

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1217

Males

1173

M40-44

1173

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

999

Males

955

M40-44

955

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

785

Males

741

M40-44

741

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

819

Males

773

M40-44

773

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1042

Males

983

M40-44

983

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

682

Males

646

M40-44

646

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

831

Males

782

M40-44

782

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

783

Males

730

M40-44

730

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

933

Males

860

M40-44

860

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1272

Males

1156

M40-44

1156

Passing Analysis

Category:
Athletes Passed
816
Passed By
237
Net Change
+579
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1456
5K → 10K14228+114#1456#1342
10K → 15K8143+38#1342#1304
15K → 20K4659-13#1304#1317
20K → Half175+12#1317#1305
Half → 25K7230+42#1305#1263
25K → 30K11120+91#1263#1172
30K → 20M918+83#1172#1089
20M → 21M569+47#1089#1042
21M → 35K248+16#1042#1026
35K → 23M532+51#1026#975
23M → 24M4210+32#975#943
24M → 40K404+36#943#907
40K → 25.2M152+13#907#894
25.2M → Finish269+17#894#877
TOTALS816237+579
📊

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