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BOSTON MARATHON 2024

James Barlow

Bib: 3808•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 19%
Gender (Male)
#0 / 14578
Top 29%
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:13/mi
19:20
↑ 97↓ 3451.5%
10K· 6.21 mi
6:13/mi
38:40
↑ 79↓ 1380.4%
15K· 9.32 mi
6:18/mi
58:13
↑ 67↓ 78
20K· 12.43 mi
6:27/mi
1:18:15
↑ 106↓ 860.1%
Half· 13.11 mi
6:23/mi
1:22:36
↑ 19↓ 370.5%
25K· 15.53 mi
6:37/mi
1:38:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:28/mi
2:01:50
↑ 181↓ 1480.2%
20M
7:41/mi
2:12:16
↑ 64↓ 500.2%
21M
9:01/mi
2:21:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
2:27:31
↑ 17↓ 861.7%
23M
9:03/mi
2:38:51
↑ 23↓ 630.6%
24M
9:01/mi
2:47:52
↓ 821.3%
40K· 24.85 mi
9:59/mi
2:56:24
↓ 200.3%
25.2M
11:10/mi
3:00:15
↑ 13↓ 160.2%
Finish· 26.22 mi
10:29/mi
3:10:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:36
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:48:20
Pace8:16 /mi
📊Positive Split: 31.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2619:206:1319:20
6:13
-
10K
6.21 mi10:40:4638:406:1319:20
6:13
0:00
15K
9.32 mi11:00:1958:136:1519:33
6:18
+0:05
20K
12.43 mi11:20:211:18:156:1820:02
6:27
+0:09
Half
13.11 mi11:24:421:22:366:184:21
6:23
-0:04
25K
15.53 mi11:40:451:38:396:2116:03
6:37
+0:14
30K
18.64 mi12:03:562:01:506:3223:11
7:28
+0:51
20M
20.00 mi12:14:222:12:166:3710:26
7:41
+0:13
21M
21.00 mi12:23:232:21:176:449:01
9:01
+1:20
35K
21.75 mi12:29:372:27:316:476:14
8:20
-0:41
23M
23.00 mi12:40:572:38:516:5411:20
9:03
+0:43
24M
24.00 mi12:49:582:47:527:009:01
9:01
-0:02
40K
24.85 mi12:58:302:56:247:068:32
9:59
+0:58
25.2M
25.20 mi13:02:213:00:157:093:51
11:10
+1:11
Finish
26.22 mi13:13:023:10:567:1710:41
10:29
-0:41

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

6:13 /mi

Average Pace

7:17 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:39

52% of race

Time at Steady Pace

39:51

21% of race

Time at Slower Pace

52:26

27% of race

Average Pace: 7:17 /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 mi10:21:2619:206:1319:20
6:13
#1729
10K
6.21 mi10:40:4638:406:1319:20
6:13
#1630
15K
9.32 mi11:00:1958:136:1519:33
6:18
#1652
20K
12.43 mi11:20:211:18:156:1820:02
6:27
#1691
Half
13.11 mi11:24:421:22:366:184:21
6:23
#1695
25K
15.53 mi11:40:451:38:396:2116:03
6:37
#1765
30K
18.64 mi12:03:562:01:506:3223:11
7:28
#2202
20M
20.00 mi12:14:222:12:166:3710:26
7:41
#2377
21M
21.00 mi12:23:232:21:176:449:01
9:01
#2703
35K
21.75 mi12:29:372:27:316:476:14
8:20
#2959
23M
23.00 mi12:40:572:38:516:5411:20
9:03
#3438
24M
24.00 mi12:49:582:47:527:009:01
9:01
#3743
40K
24.85 mi12:58:302:56:247:068:32
9:59
#4082
25.2M
25.20 mi13:02:213:00:157:093:51
11:10
#4234
Finish
26.22 mi13:13:023:10:567:1710:41
10:29
#4808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1729166916691715(Top 7%)1663(Top 11%)1663(Top 34%)
10K6.21 mi3.10 mi1630+991576+931576+931590(Top 6%)1541(Top 11%)1541(Top 32%)
15K9.32 mi3.11 mi1652-221598-221598-221715(Top 7%)1663(Top 11%)1663(Top 34%)
20K12.43 mi3.11 mi1691-391640-421640-421943(Top 8%)1875(Top 13%)1875(Top 39%)
Half13.11 mi0.68 mi1695-41642-21642-22025(Top 8%)1955(Top 13%)1955(Top 40%)
25K15.53 mi2.42 mi1765-701711-691711-692235(Top 9%)2140(Top 15%)2140(Top 44%)
30K18.64 mi3.11 mi2202-4372110-3992110-3994904(Top 19%)4280(Top 29%)4280(Top 88%)
20M20.00 mi1.36 mi2377-1752271-1612271-1615075(Top 20%)4290(Top 29%)4290(Top 88%)
21M21.00 mi1.00 mi2703-3262563-2922563-2928641(Top 34%)6100(Top 42%)6100(Top 126%)
35K21.75 mi0.75 mi2959-2562793-2302793-2309715(Top 38%)6599(Top 45%)6599(Top 136%)
23M23.00 mi1.25 mi3438-4793202-4093202-40911406(Top 45%)7262(Top 50%)7262(Top 150%)
24M24.00 mi1.00 mi3743-3053453-2513453-25112218(Top 48%)7651(Top 52%)7651(Top 158%)
40K24.85 mi0.85 mi4082-3393703-2503703-25014892(Top 58%)8889(Top 61%)8889(Top 183%)
25.2M25.20 mi0.35 mi4234-1523815-1123815-11214952(Top 59%)8889(Top 61%)8889(Top 183%)
Finish26.22 mi1.02 mi4808-5744229-4144229-41419947(Top 78%)11454(Top 79%)11454(Top 236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1715

Males

1663

M18-39

1663

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1590

Males

1541

M18-39

1541

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1715

Males

1663

M18-39

1663

15K→20K

9.3 - 12.4 mi

Top 8%
×5story building
+106ft-86ft

Overall

1943

Males

1875

M18-39

1875

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2025

Males

1955

M18-39

1955

Half→25K

13.1 - 15.5 mi

Top 9%
×4story building
+66ft-88ft

Overall

2235

Males

2140

M18-39

2140

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

4904

Males

4280

M18-39

4280

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5075

Males

4290

M18-39

4290

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8641

Males

6100

M18-39

6100

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9715

Males

6599

M18-39

6599

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11406

Males

7262

M18-39

7262

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12218

Males

7651

M18-39

7651

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

14892

Males

8889

M18-39

8889

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

14952

Males

8889

M18-39

8889

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

19947

Males

11454

M18-39

11454

Passing Analysis

Category:
Athletes Passed
443
Passed By
3522
Net Change
-3079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1729
5K → 10K13940+99#1729#1630
10K → 15K5375-22#1630#1652
15K → 20K5291-39#1652#1691
20K → Half1620-4#1691#1695
Half → 25K53123-70#1695#1765
25K → 30K30467-437#1765#2202
30K → 20M25200-175#2202#2377
20M → 21M12338-326#2377#2703
21M → 35K17273-256#2703#2959
35K → 23M12491-479#2959#3438
23M → 24M12317-305#3438#3743
24M → 40K9348-339#3743#4082
40K → 25.2M6158-152#4082#4234
25.2M → Finish7581-574#4234#4808
TOTALS4433522-3079
📊

Passing Visuals

Category:
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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