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BOSTON MARATHON 2025

John Swanson

Bib: 3566•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 14%
Masters (Masters Men)
#0 / 10463
Top 4%
Division (M40-44)
#0 / 2247
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:56
Rank: #1410
Start → 5K
18:56 | 6:06/mi
10K· 6.21 mi
37:57
Rank: #1457 (-47)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:05
Rank: #1509 (-52)
10K → 15K
19:08 | 6:10/mi
20K· 12.43 mi
1:16:41
Rank: #1633 (-124)
15K → 20K
19:36 | 6:19/mi
Half· 13.11 mi
1:20:57
Rank: #1654 (-21)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:36:28
Rank: #1732 (-78)
Half → 25K
15:31 | 6:24/mi
30K· 18.64 mi
1:57:15
Rank: #1898 (-166)
25K → 30K
20:47 | 6:41/mi
20M
2:06:34
Rank: #1967 (-69)
30K → 20M
9:19 | 6:51/mi
21M
2:14:25
Rank: #2157 (-190)
20M → 21M
7:51 | 7:51/mi
35K· 21.75 mi
2:19:25
Rank: #2183 (-26)
21M → 35K
5:00 | 6:41/mi
23M
2:28:09
Rank: #2218 (-35)
35K → 23M
8:44 | 6:59/mi
24M
2:34:59
Rank: #2259 (-41)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:41:04
Rank: #2308 (-49)
24M → 40K
6:05 | 7:07/mi
25.2M
2:43:46
Rank: #2331 (-23)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:50:59
Rank: #2435 (-104)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:57
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:30:02
Pace6:52 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0918:566:0618:56
6:06
-
10K
6.21 mi10:40:1037:576:0619:01
6:07
+0:01
15K
9.32 mi10:59:1857:056:0719:08
6:10
+0:03
20K
12.43 mi11:18:541:16:416:1019:36
6:19
+0:09
Half
13.11 mi11:23:101:20:576:104:16
6:15
-0:04
25K
15.53 mi11:38:411:36:286:1315:31
6:24
+0:09
30K
18.64 mi11:59:281:57:156:1720:47
6:41
+0:17
20M
20.00 mi12:08:472:06:346:209:19
6:51
+0:10
21M
21.00 mi12:16:382:14:256:247:51
7:51
+1:00
35K
21.75 mi12:21:382:19:256:255:00
6:41
-1:10
23M
23.00 mi12:30:222:28:096:268:44
6:59
+0:18
24M
24.00 mi12:37:122:34:596:276:50
6:50
-0:09
40K
24.85 mi12:43:172:41:046:296:05
7:07
+0:17
25.2M
25.20 mi12:45:592:43:466:302:42
7:50
+0:43
Finish
26.22 mi12:53:122:50:596:327:13
7:05
-0:45

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

6:06 /mi

Average Pace

6:32 /mi

Slowest Pace

7:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:28

56% of race

Time at Steady Pace

41:56

25% of race

Time at Slower Pace

32:35

19% 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 mi10:21:0918:566:0618:56
6:06
#1410
10K
6.21 mi10:40:1037:576:0619:01
6:07
#1457
15K
9.32 mi10:59:1857:056:0719:08
6:10
#1509
20K
12.43 mi11:18:541:16:416:1019:36
6:19
#1633
Half
13.11 mi11:23:101:20:576:104:16
6:15
#1654
25K
15.53 mi11:38:411:36:286:1315:31
6:24
#1732
30K
18.64 mi11:59:281:57:156:1720:47
6:41
#1898
20M
20.00 mi12:08:472:06:346:209:19
6:51
#1967
21M
21.00 mi12:16:382:14:256:247:51
7:51
#2157
35K
21.75 mi12:21:382:19:256:255:00
6:41
#2183
23M
23.00 mi12:30:222:28:096:268:44
6:59
#2218
24M
24.00 mi12:37:122:34:596:276:50
6:50
#2259
40K
24.85 mi12:43:172:41:046:296:05
7:07
#2308
25.2M
25.20 mi12:45:592:43:466:302:42
7:50
#2331
Finish
26.22 mi12:53:122:50:596:327:13
7:05
#2435
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1410134213421649(Top 6%)1565(Top 10%)1565(Top 70%)
10K6.21 mi3.10 mi1457-471387-451387-451558(Top 5%)1481(Top 9%)1481(Top 66%)
15K9.32 mi3.11 mi1509-521433-461433-461649(Top 6%)1565(Top 10%)1565(Top 70%)
20K12.43 mi3.11 mi1633-1241550-1171550-1172062(Top 7%)1966(Top 12%)1966(Top 87%)
Half13.11 mi0.68 mi1654-211570-201570-202287(Top 8%)2188(Top 14%)2188(Top 97%)
25K15.53 mi2.42 mi1732-781645-751645-752375(Top 8%)2260(Top 14%)2260(Top 101%)
30K18.64 mi3.11 mi1898-1661808-1631808-1632839(Top 10%)2684(Top 17%)2684(Top 119%)
20M20.00 mi1.36 mi1967-691872-641872-643248(Top 11%)3004(Top 19%)3004(Top 134%)
21M21.00 mi1.00 mi2157-1902056-1842056-1846470(Top 23%)5365(Top 33%)5365(Top 239%)
35K21.75 mi0.75 mi2183-262082-262082-263414(Top 12%)3113(Top 19%)3113(Top 139%)
23M23.00 mi1.25 mi2218-352112-302112-303619(Top 13%)3275(Top 20%)3275(Top 146%)
24M24.00 mi1.00 mi2259-412149-372149-373709(Top 13%)3305(Top 21%)3305(Top 147%)
40K24.85 mi0.85 mi2308-492195-462195-464560(Top 16%)3892(Top 24%)3892(Top 173%)
25.2M25.20 mi0.35 mi2331-232215-202215-204998(Top 18%)4115(Top 26%)4115(Top 183%)
Finish26.22 mi1.02 mi2435-1042309-942309-946236(Top 22%)4879(Top 30%)4879(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1649

Males

1565

M40-44

1565

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1558

Males

1481

M40-44

1481

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1649

Males

1565

M40-44

1565

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2062

Males

1966

M40-44

1966

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2287

Males

2188

M40-44

2188

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2375

Males

2260

M40-44

2260

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2839

Males

2684

M40-44

2684

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3248

Males

3004

M40-44

3004

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6470

Males

5365

M40-44

5365

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3414

Males

3113

M40-44

3113

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3619

Males

3275

M40-44

3275

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3709

Males

3305

M40-44

3305

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4560

Males

3892

M40-44

3892

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4998

Males

4115

M40-44

4115

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6236

Males

4879

M40-44

4879

Passing Analysis

Category:
Athletes Passed
324
Passed By
1349
Net Change
-1025
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1410
5K → 10K54101-47#1410#1457
10K → 15K3284-52#1457#1509
15K → 20K20144-124#1509#1633
20K → Half728-21#1633#1654
Half → 25K28106-78#1654#1732
25K → 30K40206-166#1732#1898
30K → 20M1786-69#1898#1967
20M → 21M8198-190#1967#2157
21M → 35K1844-26#2157#2183
35K → 23M3166-35#2183#2218
23M → 24M2869-41#2218#2259
24M → 40K2271-49#2259#2308
40K → 25.2M932-23#2308#2331
25.2M → Finish10114-104#2331#2435
TOTALS3241349-1025
📊

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