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BOSTON MARATHON 2025

James Izard

Bib: 5502•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #6073
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
41:10
Rank: #4691 (+1382)
5K → 10K
20:08 | 6:29/mi
15K· 9.32 mi
1:00:51
Rank: #3869 (+822)
10K → 15K
19:41 | 6:20/mi
20K· 12.43 mi
1:20:05
Rank: #3128 (+741)
15K → 20K
19:14 | 6:11/mi
Half· 13.11 mi
1:24:20
Rank: #3073 (+55)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:39:24
Rank: #2733 (+340)
Half → 25K
15:04 | 6:13/mi
30K· 18.64 mi
1:59:35
Rank: #2529 (+204)
25K → 30K
20:11 | 6:30/mi
20M
2:08:46
Rank: #2496 (+33)
30K → 20M
9:11 | 6:45/mi
21M
2:15:31
Rank: #2404 (+92)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:20:19
Rank: #2353 (+51)
21M → 35K
4:48 | 6:25/mi
23M
2:28:24
Rank: #2274 (+79)
35K → 23M
8:05 | 6:27/mi
24M
2:34:43
Rank: #2189 (+85)
23M → 24M
6:19 | 6:19/mi
40K· 24.85 mi
2:40:06
Rank: #2105 (+84)
24M → 40K
5:23 | 6:18/mi
25.2M
2:42:26
Rank: #2062 (+43)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:48:33
Rank: #1976 (+86)
25.2M → Finish
6:07 | 6:00/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:20
Pace6:26 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:13
Pace6:25 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0021:026:4621:02
6:46
-
10K
6.21 mi10:46:0841:106:3820:08
6:29
-0:17
15K
9.32 mi11:05:491:00:516:3219:41
6:20
-0:09
20K
12.43 mi11:25:031:20:056:2719:14
6:11
-0:09
Half
13.11 mi11:29:181:24:206:264:15
6:14
+0:03
25K
15.53 mi11:44:221:39:246:2415:04
6:13
-0:01
30K
18.64 mi12:04:331:59:356:2520:11
6:30
+0:17
20M
20.00 mi12:13:442:08:466:269:11
6:45
+0:15
21M
21.00 mi12:20:292:15:316:276:45
6:45
0:00
35K
21.75 mi12:25:172:20:196:274:48
6:25
-0:20
23M
23.00 mi12:33:222:28:246:278:05
6:27
+0:02
24M
24.00 mi12:39:412:34:436:276:19
6:19
-0:08
40K
24.85 mi12:45:042:40:066:265:23
6:18
-0:01
25.2M
25.20 mi12:47:242:42:266:272:20
6:46
+0:28
Finish
26.22 mi12:53:312:48:336:266:07
6:00
-0:46

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

6:00 /mi

Average Pace

6:26 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:15

77% of race

Time at Steady Pace

39:18

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:26 /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 mi10:26:0021:026:4621:02
6:46
#6073
10K
6.21 mi10:46:0841:106:3820:08
6:29
#4691
15K
9.32 mi11:05:491:00:516:3219:41
6:20
#3869
20K
12.43 mi11:25:031:20:056:2719:14
6:11
#3128
Half
13.11 mi11:29:181:24:206:264:15
6:14
#3073
25K
15.53 mi11:44:221:39:246:2415:04
6:13
#2733
30K
18.64 mi12:04:331:59:356:2520:11
6:30
#2529
20M
20.00 mi12:13:442:08:466:269:11
6:45
#2496
21M
21.00 mi12:20:292:15:316:276:45
6:45
#2404
35K
21.75 mi12:25:172:20:196:274:48
6:25
#2353
23M
23.00 mi12:33:222:28:246:278:05
6:27
#2274
24M
24.00 mi12:39:412:34:436:276:19
6:19
#2189
40K
24.85 mi12:45:042:40:066:265:23
6:18
#2105
25.2M
25.20 mi12:47:242:42:266:272:20
6:46
#2062
Finish
26.22 mi12:53:312:48:336:266:07
6:00
#1976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6073557255722549(Top 9%)2432(Top 15%)2432(Top 43%)
10K6.21 mi3.10 mi4691+13824394+11784394+11783569(Top 13%)3376(Top 21%)3376(Top 60%)
15K9.32 mi3.11 mi3869+8223651+7433651+7432549(Top 9%)2432(Top 15%)2432(Top 43%)
20K12.43 mi3.11 mi3128+7412980+6712980+6711547(Top 5%)1468(Top 9%)1468(Top 26%)
Half13.11 mi0.68 mi3073+552931+492931+492099(Top 7%)2003(Top 12%)2003(Top 36%)
25K15.53 mi2.42 mi2733+3402607+3242607+3241512(Top 5%)1437(Top 9%)1437(Top 25%)
30K18.64 mi3.11 mi2529+2042415+1922415+1921955(Top 7%)1858(Top 12%)1858(Top 33%)
20M20.00 mi1.36 mi2496+332381+342381+342695(Top 9%)2524(Top 16%)2524(Top 45%)
21M21.00 mi1.00 mi2404+922291+902291+901365(Top 5%)1291(Top 8%)1291(Top 23%)
35K21.75 mi0.75 mi2353+512242+492242+492061(Top 7%)1928(Top 12%)1928(Top 34%)
23M23.00 mi1.25 mi2274+792166+762166+761322(Top 5%)1243(Top 8%)1243(Top 22%)
24M24.00 mi1.00 mi2189+852082+842082+841354(Top 5%)1266(Top 8%)1266(Top 22%)
40K24.85 mi0.85 mi2105+841999+831999+83964(Top 3%)903(Top 6%)903(Top 16%)
25.2M25.20 mi0.35 mi2062+431956+431956+43907(Top 3%)840(Top 5%)840(Top 15%)
Finish26.22 mi1.02 mi1976+861872+841872+84923(Top 3%)868(Top 5%)868(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2549

Males

2432

M18-39

2432

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3569

Males

3376

M18-39

3376

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2549

Males

2432

M18-39

2432

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1547

Males

1468

M18-39

1468

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2099

Males

2003

M18-39

2003

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1512

Males

1437

M18-39

1437

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1955

Males

1858

M18-39

1858

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2695

Males

2524

M18-39

2524

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1365

Males

1291

M18-39

1291

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2061

Males

1928

M18-39

1928

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1322

Males

1243

M18-39

1243

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1354

Males

1266

M18-39

1266

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

964

Males

903

M18-39

903

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

907

Males

840

M18-39

840

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

923

Males

868

M18-39

868

Passing Analysis

Category:
Athletes Passed
4171
Passed By
74
Net Change
+4097
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6073
5K → 10K13853+1382#6073#4691
10K → 15K8220+822#4691#3869
15K → 20K7410+741#3869#3128
20K → Half561+55#3128#3073
Half → 25K3400+340#3073#2733
25K → 30K21511+204#2733#2529
30K → 20M5825+33#2529#2496
20M → 21M975+92#2496#2404
21M → 35K6312+51#2404#2353
35K → 23M845+79#2353#2274
23M → 24M905+85#2274#2189
24M → 40K862+84#2189#2105
40K → 25.2M441+43#2105#2062
25.2M → Finish904+86#2062#1976
TOTALS417174+4097
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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