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BOSTON MARATHON 2025

Jonathon Western

Bib: 3642•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M40-44)
#0 / 2247
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:02
Rank: #1514
Start → 5K
19:02 | 6:08/mi
10K· 6.21 mi
38:08
Rank: #1581 (-67)
5K → 10K
19:06 | 6:09/mi
15K· 9.32 mi
57:56
Rank: #1921 (-340)
10K → 15K
19:48 | 6:22/mi
20K· 12.43 mi
1:17:06
Rank: #1778 (+143)
15K → 20K
19:10 | 6:10/mi
Half· 13.11 mi
1:21:11
Rank: #1737 (+41)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:36:08
Rank: #1639 (+98)
Half → 25K
14:57 | 6:10/mi
30K· 18.64 mi
1:55:46
Rank: #1530 (+109)
25K → 30K
19:38 | 6:19/mi
20M
2:04:41
Rank: #1530
30K → 20M
8:55 | 6:34/mi
21M
2:11:48
Rank: #1569 (-39)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:16:32
Rank: #1547 (+22)
21M → 35K
4:44 | 6:20/mi
23M
2:25:04
Rank: #1571 (-24)
35K → 23M
8:32 | 6:49/mi
24M
2:31:30
Rank: #1552 (+19)
23M → 24M
6:26 | 6:26/mi
40K· 24.85 mi
2:37:28
Rank: #1611 (-59)
24M → 40K
5:58 | 6:59/mi
25.2M
2:40:07
Rank: #1637 (-26)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:46:49
Rank: #1682 (-45)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:11
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:25:38
Pace6:32 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4119:026:0819:02
6:08
-
10K
6.21 mi10:40:4738:086:0819:06
6:09
+0:01
15K
9.32 mi11:00:3557:566:1319:48
6:22
+0:13
20K
12.43 mi11:19:451:17:066:1219:10
6:10
-0:12
Half
13.11 mi11:23:501:21:116:124:05
5:59
-0:11
25K
15.53 mi11:38:471:36:086:1114:57
6:10
+0:11
30K
18.64 mi11:58:251:55:466:1319:38
6:19
+0:09
20M
20.00 mi12:07:202:04:416:148:55
6:34
+0:15
21M
21.00 mi12:14:272:11:486:177:07
7:07
+0:33
35K
21.75 mi12:19:112:16:326:174:44
6:20
-0:47
23M
23.00 mi12:27:432:25:046:188:32
6:49
+0:29
24M
24.00 mi12:34:092:31:306:196:26
6:26
-0:23
40K
24.85 mi12:40:072:37:286:205:58
6:59
+0:33
25.2M
25.20 mi12:42:462:40:076:212:39
7:41
+0:42
Finish
26.22 mi12:49:282:46:496:226:42
6:34
-1:07

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

5:59 /mi

Average Pace

6:22 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:07

14% of race

Time at Steady Pace

1:59:26

72% of race

Time at Slower Pace

24:16

15% of race

Average Pace: 6:22 /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 mi10:21:4119:026:0819:02
6:08
#1514
10K
6.21 mi10:40:4738:086:0819:06
6:09
#1581
15K
9.32 mi11:00:3557:566:1319:48
6:22
#1921
20K
12.43 mi11:19:451:17:066:1219:10
6:10
#1778
Half
13.11 mi11:23:501:21:116:124:05
5:59
#1737
25K
15.53 mi11:38:471:36:086:1114:57
6:10
#1639
30K
18.64 mi11:58:251:55:466:1319:38
6:19
#1530
20M
20.00 mi12:07:202:04:416:148:55
6:34
#1530
21M
21.00 mi12:14:272:11:486:177:07
7:07
#1569
35K
21.75 mi12:19:112:16:326:174:44
6:20
#1547
23M
23.00 mi12:27:432:25:046:188:32
6:49
#1571
24M
24.00 mi12:34:092:31:306:196:26
6:26
#1552
40K
24.85 mi12:40:072:37:286:205:58
6:59
#1611
25.2M
25.20 mi12:42:462:40:076:212:39
7:41
#1637
Finish
26.22 mi12:49:282:46:496:226:42
6:34
#1682
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1514144414442772(Top 10%)2639(Top 16%)2639(Top 117%)
10K6.21 mi3.10 mi1581-671503-591503-591666(Top 6%)1586(Top 10%)1586(Top 71%)
15K9.32 mi3.11 mi1921-3401827-3241827-3242772(Top 10%)2639(Top 16%)2639(Top 117%)
20K12.43 mi3.11 mi1778+1431691+1361691+1361455(Top 5%)1380(Top 9%)1380(Top 61%)
Half13.11 mi0.68 mi1737+411650+411650+411126(Top 4%)1068(Top 7%)1068(Top 48%)
25K15.53 mi2.42 mi1639+981556+941556+941334(Top 5%)1264(Top 8%)1264(Top 56%)
30K18.64 mi3.11 mi1530+1091450+1061450+1061271(Top 4%)1200(Top 7%)1200(Top 53%)
20M20.00 mi1.36 mi15301449+11449+11869(Top 7%)1769(Top 11%)1769(Top 79%)
21M21.00 mi1.00 mi1569-391486-371486-372768(Top 10%)2571(Top 16%)2571(Top 114%)
35K21.75 mi0.75 mi1547+221464+221464+221740(Top 6%)1634(Top 10%)1634(Top 73%)
23M23.00 mi1.25 mi1571-241488-241488-242785(Top 10%)2559(Top 16%)2559(Top 114%)
24M24.00 mi1.00 mi1552+191468+201468+201806(Top 6%)1682(Top 10%)1682(Top 75%)
40K24.85 mi0.85 mi1611-591526-581526-583764(Top 13%)3309(Top 21%)3309(Top 147%)
25.2M25.20 mi0.35 mi1637-261549-231549-234248(Top 15%)3604(Top 22%)3604(Top 160%)
Finish26.22 mi1.02 mi1682-451592-431592-433203(Top 11%)2835(Top 18%)2835(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2772

Males

2639

M40-44

2639

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1666

Males

1586

M40-44

1586

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2772

Males

2639

M40-44

2639

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1455

Males

1380

M40-44

1380

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1126

Males

1068

M40-44

1068

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1334

Males

1264

M40-44

1264

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1271

Males

1200

M40-44

1200

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1869

Males

1769

M40-44

1769

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2768

Males

2571

M40-44

2571

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1740

Males

1634

M40-44

1634

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2785

Males

2559

M40-44

2559

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1806

Males

1682

M40-44

1682

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3764

Males

3309

M40-44

3309

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4248

Males

3604

M40-44

3604

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3203

Males

2835

M40-44

2835

Passing Analysis

Category:
Athletes Passed
676
Passed By
844
Net Change
-168
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1514
5K → 10K48115-67#1514#1581
10K → 15K10350-340#1581#1921
15K → 20K1496+143#1921#1778
20K → Half410+41#1778#1737
Half → 25K1068+98#1737#1639
25K → 30K12415+109#1639#1530
30K → 20M40400#1530#1530
20M → 21M2160-39#1530#1569
21M → 35K3412+22#1569#1547
35K → 23M3660-24#1547#1571
23M → 24M3516+19#1571#1552
24M → 40K1271-59#1552#1611
40K → 25.2M430-26#1611#1637
25.2M → Finish1661-45#1637#1682
TOTALS676844-168
📊

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