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BOSTON MARATHON 2025

Jonathan Schlagel

Bib: 3179•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Division (M18-39)
#0 / 5642
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:11
Rank: #1727
Start → 5K
19:11 | 6:10/mi
10K· 6.21 mi
38:12
Rank: #1627 (+100)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:25
Rank: #1655 (-28)
10K → 15K
19:13 | 6:11/mi
20K· 12.43 mi
1:16:53
Rank: #1705 (-50)
15K → 20K
19:28 | 6:16/mi
Half· 13.11 mi
1:21:09
Rank: #1726 (-21)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:36:27
Rank: #1724 (+2)
Half → 25K
15:18 | 6:19/mi
30K· 18.64 mi
1:56:42
Rank: #1768 (-44)
25K → 30K
20:15 | 6:31/mi
20M
2:05:49
Rank: #1792 (-24)
30K → 20M
9:07 | 6:43/mi
21M
2:13:09
Rank: #1855 (-63)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:18:15
Rank: #1912 (-57)
21M → 35K
5:06 | 6:49/mi
23M
2:27:23
Rank: #2064 (-152)
35K → 23M
9:08 | 7:18/mi
24M
2:34:38
Rank: #2175 (-111)
23M → 24M
7:15 | 7:15/mi
40K· 24.85 mi
2:41:05
Rank: #2313 (-138)
24M → 40K
6:27 | 7:33/mi
25.2M
2:43:58
Rank: #2380 (-67)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
2:51:19
Rank: #2496 (-116)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:09
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:30:10
Pace6:53 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4019:116:1019:11
6:10
-
10K
6.21 mi10:39:4138:126:0919:01
6:07
-0:03
15K
9.32 mi10:58:5457:256:1019:13
6:11
+0:04
20K
12.43 mi11:18:221:16:536:1119:28
6:16
+0:05
Half
13.11 mi11:22:381:21:096:114:16
6:15
-0:01
25K
15.53 mi11:37:561:36:276:1315:18
6:19
+0:04
30K
18.64 mi11:58:111:56:426:1620:15
6:31
+0:12
20M
20.00 mi12:07:182:05:496:179:07
6:43
+0:12
21M
21.00 mi12:14:382:13:096:207:20
7:20
+0:37
35K
21.75 mi12:19:442:18:156:215:06
6:49
-0:31
23M
23.00 mi12:28:522:27:236:249:08
7:18
+0:29
24M
24.00 mi12:36:072:34:386:277:15
7:15
-0:03
40K
24.85 mi12:42:342:41:056:296:27
7:33
+0:18
25.2M
25.20 mi12:45:272:43:586:302:53
8:22
+0:49
Finish
26.22 mi12:52:482:51:196:327:21
7:13
-1:09

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

6:32 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:27

56% of race

Time at Steady Pace

34:28

20% of race

Time at Slower Pace

40:24

24% of race

Average Pace: 6:32 /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 mi10:20:4019:116:1019:11
6:10
#1727
10K
6.21 mi10:39:4138:126:0919:01
6:07
#1627
15K
9.32 mi10:58:5457:256:1019:13
6:11
#1655
20K
12.43 mi11:18:221:16:536:1119:28
6:16
#1705
Half
13.11 mi11:22:381:21:096:114:16
6:15
#1726
25K
15.53 mi11:37:561:36:276:1315:18
6:19
#1724
30K
18.64 mi11:58:111:56:426:1620:15
6:31
#1768
20M
20.00 mi12:07:182:05:496:179:07
6:43
#1792
21M
21.00 mi12:14:382:13:096:207:20
7:20
#1855
35K
21.75 mi12:19:442:18:156:215:06
6:49
#1912
23M
23.00 mi12:28:522:27:236:249:08
7:18
#2064
24M
24.00 mi12:36:072:34:386:277:15
7:15
#2175
40K
24.85 mi12:42:342:41:056:296:27
7:33
#2313
25.2M
25.20 mi12:45:272:43:586:302:53
8:22
#2380
Finish
26.22 mi12:52:482:51:196:327:21
7:13
#2496
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1727164116411793(Top 6%)1705(Top 11%)1705(Top 30%)
10K6.21 mi3.10 mi1627+1001548+931548+931559(Top 5%)1482(Top 9%)1482(Top 26%)
15K9.32 mi3.11 mi1655-281575-271575-271793(Top 6%)1705(Top 11%)1705(Top 30%)
20K12.43 mi3.11 mi1705-501620-451620-451872(Top 7%)1783(Top 11%)1783(Top 32%)
Half13.11 mi0.68 mi1726-211640-201640-202293(Top 8%)2194(Top 14%)2194(Top 39%)
25K15.53 mi2.42 mi1724+21637+31637+31926(Top 7%)1832(Top 11%)1832(Top 32%)
30K18.64 mi3.11 mi1768-441683-461683-462068(Top 7%)1967(Top 12%)1967(Top 35%)
20M20.00 mi1.36 mi1792-241704-211704-212513(Top 9%)2367(Top 15%)2367(Top 42%)
21M21.00 mi1.00 mi1855-631764-601764-603782(Top 13%)3445(Top 21%)3445(Top 61%)
35K21.75 mi0.75 mi1912-571816-521816-524220(Top 15%)3773(Top 23%)3773(Top 67%)
23M23.00 mi1.25 mi2064-1521963-1471963-1475435(Top 19%)4624(Top 29%)4624(Top 82%)
24M24.00 mi1.00 mi2175-1112068-1052068-1056105(Top 21%)4982(Top 31%)4982(Top 88%)
40K24.85 mi0.85 mi2313-1382200-1322200-1327018(Top 25%)5436(Top 34%)5436(Top 96%)
25.2M25.20 mi0.35 mi2380-672259-592259-597892(Top 28%)5833(Top 36%)5833(Top 103%)
Finish26.22 mi1.02 mi2496-1162366-1072366-1077094(Top 25%)5381(Top 33%)5381(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1793

Males

1705

M18-39

1705

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1559

Males

1482

M18-39

1482

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1793

Males

1705

M18-39

1705

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1872

Males

1783

M18-39

1783

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2293

Males

2194

M18-39

2194

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1926

Males

1832

M18-39

1832

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

2068

Males

1967

M18-39

1967

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2513

Males

2367

M18-39

2367

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3782

Males

3445

M18-39

3445

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4220

Males

3773

M18-39

3773

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5435

Males

4624

M18-39

4624

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

6105

Males

4982

M18-39

4982

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7018

Males

5436

M18-39

5436

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7892

Males

5833

M18-39

5833

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7094

Males

5381

M18-39

5381

Passing Analysis

Category:
Athletes Passed
463
Passed By
1232
Net Change
-769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1727
5K → 10K14242+100#1727#1627
10K → 15K4977-28#1627#1655
15K → 20K3787-50#1655#1705
20K → Half223-21#1705#1726
Half → 25K5351+2#1726#1724
25K → 30K5599-44#1724#1768
30K → 20M3458-24#1768#1792
20M → 21M2083-63#1792#1855
21M → 35K1572-57#1855#1912
35K → 23M12164-152#1912#2064
23M → 24M16127-111#2064#2175
24M → 40K13151-138#2175#2313
40K → 25.2M673-67#2313#2380
25.2M → Finish9125-116#2380#2496
TOTALS4631232-769
📊

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