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BOSTON MARATHON 2025

Jonathan Loy

Bib: 1339•M

TX

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0:00
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:34
Rank: #2431
Start → 5K
19:34 | 6:18/mi
10K· 6.21 mi
39:22
Rank: #2652 (-221)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
59:26
Rank: #2849 (-197)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:19:45
Rank: #2966 (-117)
15K → 20K
20:19 | 6:32/mi
Half· 13.11 mi
1:24:09
Rank: #2978 (-12)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:03
Rank: #2995 (-17)
Half → 25K
15:54 | 6:33/mi
30K· 18.64 mi
2:00:03
Rank: #2665 (+330)
25K → 30K
20:00 | 6:26/mi
20M
2:08:41
Rank: #2483 (+182)
30K → 20M
8:38 | 6:21/mi
21M
2:15:25
Rank: #2369 (+114)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:20:19
Rank: #2356 (+13)
21M → 35K
4:54 | 6:33/mi
23M
2:28:39
Rank: #2326 (+30)
35K → 23M
8:20 | 6:39/mi
24M
2:35:11
Rank: #2301 (+25)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:40:50
Rank: #2265 (+36)
24M → 40K
5:39 | 6:36/mi
25.2M
2:43:17
Rank: #2243 (+22)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:49:45
Rank: #2224 (+19)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:09
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:25:36
Pace6:32 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0119:346:1819:34
6:18
-
10K
6.21 mi10:39:4939:226:2019:48
6:22
+0:04
15K
9.32 mi10:59:5359:266:2320:04
6:28
+0:06
20K
12.43 mi11:20:121:19:456:2520:19
6:32
+0:04
Half
13.11 mi11:24:361:24:096:254:24
6:27
-0:05
25K
15.53 mi11:40:301:40:036:2615:54
6:33
+0:06
30K
18.64 mi12:00:302:00:036:2620:00
6:26
-0:07
20M
20.00 mi12:09:082:08:416:268:38
6:21
-0:05
21M
21.00 mi12:15:522:15:256:276:44
6:44
+0:23
35K
21.75 mi12:20:462:20:196:274:54
6:33
-0:11
23M
23.00 mi12:29:062:28:396:288:20
6:39
+0:06
24M
24.00 mi12:35:382:35:116:286:32
6:32
-0:07
40K
24.85 mi12:41:172:40:506:285:39
6:36
+0:04
25.2M
25.20 mi12:43:442:43:176:292:27
7:06
+0:30
Finish
26.22 mi12:50:122:49:456:296:28
6:21
-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

6:18 /mi

Average Pace

6:29 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:18

99% of race

Time at Steady Pace

2:27

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:20:0119:346:1819:34
6:18
#2431
10K
6.21 mi10:39:4939:226:2019:48
6:22
#2652
15K
9.32 mi10:59:5359:266:2320:04
6:28
#2849
20K
12.43 mi11:20:121:19:456:2520:19
6:32
#2966
Half
13.11 mi11:24:361:24:096:254:24
6:27
#2978
25K
15.53 mi11:40:301:40:036:2615:54
6:33
#2995
30K
18.64 mi12:00:302:00:036:2620:00
6:26
#2665
20M
20.00 mi12:09:082:08:416:268:38
6:21
#2483
21M
21.00 mi12:15:522:15:256:276:44
6:44
#2369
35K
21.75 mi12:20:462:20:196:274:54
6:33
#2356
23M
23.00 mi12:29:062:28:396:288:20
6:39
#2326
24M
24.00 mi12:35:382:35:116:286:32
6:32
#2301
40K
24.85 mi12:41:172:40:506:285:39
6:36
#2265
25.2M
25.20 mi12:43:442:43:176:292:27
7:06
#2243
Finish
26.22 mi12:50:122:49:456:296:28
6:21
#2224
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2431231523153291(Top 12%)3125(Top 19%)3125(Top 55%)
10K6.21 mi3.10 mi2652-2212526-2112526-2112859(Top 10%)2721(Top 17%)2721(Top 48%)
15K9.32 mi3.11 mi2849-1972716-1902716-1903291(Top 12%)3125(Top 19%)3125(Top 55%)
20K12.43 mi3.11 mi2966-1172826-1102826-1103332(Top 12%)3157(Top 20%)3157(Top 56%)
Half13.11 mi0.68 mi2978-122839-132839-133310(Top 12%)3136(Top 19%)3136(Top 56%)
25K15.53 mi2.42 mi2995-172854-152854-153183(Top 11%)3014(Top 19%)3014(Top 53%)
30K18.64 mi3.11 mi2665+3302544+3102544+3101703(Top 6%)1616(Top 10%)1616(Top 29%)
20M20.00 mi1.36 mi2483+1822368+1762368+1761109(Top 4%)1046(Top 6%)1046(Top 19%)
21M21.00 mi1.00 mi2369+1142257+1112257+1111317(Top 5%)1246(Top 8%)1246(Top 22%)
35K21.75 mi0.75 mi2356+132245+122245+122681(Top 9%)2479(Top 15%)2479(Top 44%)
23M23.00 mi1.25 mi2326+302218+272218+272050(Top 7%)1915(Top 12%)1915(Top 34%)
24M24.00 mi1.00 mi2301+252190+282190+282169(Top 8%)2009(Top 12%)2009(Top 36%)
40K24.85 mi0.85 mi2265+362153+372153+371989(Top 7%)1832(Top 11%)1832(Top 32%)
25.2M25.20 mi0.35 mi2243+222130+232130+231789(Top 6%)1628(Top 10%)1628(Top 29%)
Finish26.22 mi1.02 mi2224+192109+212109+212064(Top 7%)1891(Top 12%)1891(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3291

Males

3125

M18-39

3125

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2859

Males

2721

M18-39

2721

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3291

Males

3125

M18-39

3125

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3332

Males

3157

M18-39

3157

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3310

Males

3136

M18-39

3136

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3183

Males

3014

M18-39

3014

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1703

Males

1616

M18-39

1616

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1109

Males

1046

M18-39

1046

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1317

Males

1246

M18-39

1246

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2681

Males

2479

M18-39

2479

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2050

Males

1915

M18-39

1915

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2169

Males

2009

M18-39

2009

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1989

Males

1832

M18-39

1832

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1789

Males

1628

M18-39

1628

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2064

Males

1891

M18-39

1891

Passing Analysis

Category:
Athletes Passed
1090
Passed By
883
Net Change
+207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2431
5K → 10K45266-221#2431#2652
10K → 15K30227-197#2652#2849
15K → 20K48165-117#2849#2966
20K → Half1224-12#2966#2978
Half → 25K6380-17#2978#2995
25K → 30K3333+330#2995#2665
30K → 20M1820+182#2665#2483
20M → 21M1162+114#2483#2369
21M → 35K3724+13#2369#2356
35K → 23M5626+30#2356#2326
23M → 24M4621+25#2326#2301
24M → 40K5216+36#2301#2265
40K → 25.2M286+22#2265#2243
25.2M → Finish4223+19#2243#2224
TOTALS1090883+207
📊

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