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BOSTON MARATHON 2025

Thomas Jackson

Bib: 30423•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:22
Rank: #26585
Start → 5K
32:22 | 10:25/mi
10K· 6.21 mi
1:05:27
Rank: #26558 (+27)
5K → 10K
33:05 | 10:39/mi
15K· 9.32 mi
1:38:45
Rank: #26451 (+107)
10K → 15K
33:18 | 10:43/mi
20K· 12.43 mi
2:12:02
Rank: #26208 (+243)
15K → 20K
33:17 | 10:43/mi
Half· 13.11 mi
2:18:33
Rank: #26089 (+119)
20K → Half
6:31 | 9:33/mi
25K· 15.53 mi
2:43:27
Rank: #25722 (+367)
Half → 25K
24:54 | 10:16/mi
30K· 18.64 mi
3:19:04
Rank: #25554 (+168)
25K → 30K
35:37 | 11:28/mi
20M
3:34:22
Rank: #25460 (+94)
30K → 20M
15:18 | 11:16/mi
21M
3:46:56
Rank: #25416 (+44)
20M → 21M
12:34 | 12:34/mi
35K· 21.75 mi
3:55:12
Rank: #25368 (+48)
21M → 35K
8:16 | 11:03/mi
23M
4:10:21
Rank: #25371 (-3)
35K → 23M
15:09 | 12:06/mi
24M
4:21:29
Rank: #25314 (+57)
23M → 24M
11:08 | 11:08/mi
40K· 24.85 mi
4:30:55
Rank: #25265 (+49)
24M → 40K
9:26 | 11:02/mi
25.2M
4:34:53
Rank: #25236 (+29)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:44:39
Rank: #25155 (+81)
25.2M → Finish
9:46 | 9:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:33
Pace10:34 /mi
2nd Half
Distance13.11 mi
Time2:26:06
Pace11:09 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:0932:2210:2532:22
10:25
-
10K
6.21 mi12:30:141:05:2710:3233:05
10:39
+0:14
15K
9.32 mi13:03:321:38:4510:3633:18
10:43
+0:04
20K
12.43 mi13:36:492:12:0210:3733:17
10:43
0:00
Half
13.11 mi13:43:202:18:3310:346:31
9:33
-1:10
25K
15.53 mi14:08:142:43:2710:3124:54
10:16
+0:43
30K
18.64 mi14:43:513:19:0410:4135:37
11:28
+1:12
20M
20.00 mi14:59:093:34:2210:4315:18
11:16
-0:12
21M
21.00 mi15:11:433:46:5610:4812:34
12:34
+1:18
35K
21.75 mi15:19:593:55:1210:498:16
11:03
-1:31
23M
23.00 mi15:35:084:10:2110:5315:09
12:06
+1:03
24M
24.00 mi15:46:164:21:2910:5411:08
11:08
-0:58
40K
24.85 mi15:55:424:30:5510:549:26
11:02
-0:06
25.2M
25.20 mi15:59:404:34:5310:543:58
11:30
+0:28
Finish
26.22 mi16:09:264:44:3910:529:46
9:35
-1:55

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

9:33 /mi

Average Pace

10:52 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:33

26% of race

Time at Steady Pace

2:23:48

51% of race

Time at Slower Pace

1:07:18

24% of race

Average Pace: 10:51 /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 mi11:57:0932:2210:2532:22
10:25
#26585
10K
6.21 mi12:30:141:05:2710:3233:05
10:39
#26558
15K
9.32 mi13:03:321:38:4510:3633:18
10:43
#26451
20K
12.43 mi13:36:492:12:0210:3733:17
10:43
#26208
Half
13.11 mi13:43:202:18:3310:346:31
9:33
#26089
25K
15.53 mi14:08:142:43:2710:3124:54
10:16
#25722
30K
18.64 mi14:43:513:19:0410:4135:37
11:28
#25554
20M
20.00 mi14:59:093:34:2210:4315:18
11:16
#25460
21M
21.00 mi15:11:433:46:5610:4812:34
12:34
#25416
35K
21.75 mi15:19:593:55:1210:498:16
11:03
#25368
23M
23.00 mi15:35:084:10:2110:5315:09
12:06
#25371
24M
24.00 mi15:46:164:21:2910:5411:08
11:08
#25314
40K
24.85 mi15:55:424:30:5510:549:26
11:02
#25265
25.2M
25.20 mi15:59:404:34:5310:543:58
11:30
#25236
Finish
26.22 mi16:09:264:44:3910:529:46
9:35
#25155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26585154231542326279(Top 93%)15280(Top 95%)15280(Top 271%)
10K6.21 mi3.10 mi26558+2715407+1615407+1626522(Top 93%)15373(Top 95%)15373(Top 272%)
15K9.32 mi3.11 mi26451+10715360+4715360+4726279(Top 93%)15280(Top 95%)15280(Top 271%)
20K12.43 mi3.11 mi26208+24315250+11015250+11025559(Top 90%)14921(Top 93%)14921(Top 264%)
Half13.11 mi0.68 mi26089+11915187+6315187+6323708(Top 83%)14111(Top 88%)14111(Top 250%)
25K15.53 mi2.42 mi25722+36715011+17615011+17623880(Top 84%)14144(Top 88%)14144(Top 251%)
30K18.64 mi3.11 mi25554+16814894+11714894+11724800(Top 87%)14442(Top 90%)14442(Top 256%)
20M20.00 mi1.36 mi25460+9414844+5014844+5024114(Top 85%)14042(Top 87%)14042(Top 249%)
21M21.00 mi1.00 mi25416+4414808+3614808+3624484(Top 86%)14138(Top 88%)14138(Top 251%)
35K21.75 mi0.75 mi25368+4814775+3314775+3324314(Top 86%)14027(Top 87%)14027(Top 249%)
23M23.00 mi1.25 mi25371-314767+814767+825265(Top 89%)14460(Top 90%)14460(Top 256%)
24M24.00 mi1.00 mi25314+5714738+2914738+2924260(Top 85%)13954(Top 87%)13954(Top 247%)
40K24.85 mi0.85 mi25265+4914705+3314705+3323226(Top 82%)13353(Top 83%)13353(Top 237%)
25.2M25.20 mi0.35 mi25236+2914691+1414691+1422052(Top 78%)12827(Top 80%)12827(Top 227%)
Finish26.22 mi1.02 mi25155+8114646+4514646+4521490(Top 76%)12537(Top 78%)12537(Top 222%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26279

Males

15280

M18-39

15280

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26522

Males

15373

M18-39

15373

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26279

Males

15280

M18-39

15280

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25559

Males

14921

M18-39

14921

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23708

Males

14111

M18-39

14111

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23880

Males

14144

M18-39

14144

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24800

Males

14442

M18-39

14442

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24114

Males

14042

M18-39

14042

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24484

Males

14138

M18-39

14138

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24314

Males

14027

M18-39

14027

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

25265

Males

14460

M18-39

14460

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24260

Males

13954

M18-39

13954

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23226

Males

13353

M18-39

13353

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22052

Males

12827

M18-39

12827

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21490

Males

12537

M18-39

12537

Passing Analysis

Category:
Athletes Passed
1839
Passed By
409
Net Change
+1430
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26585
5K → 10K192165+27#26585#26558
10K → 15K17164+107#26558#26451
15K → 20K27027+243#26451#26208
20K → Half1201+119#26208#26089
Half → 25K3681+367#26089#25722
25K → 30K20840+168#25722#25554
30K → 20M10612+94#25554#25460
20M → 21M6824+44#25460#25416
21M → 35K568+48#25416#25368
35K → 23M4043-3#25368#25371
23M → 24M7114+57#25371#25314
24M → 40K567+49#25314#25265
40K → 25.2M301+29#25265#25236
25.2M → Finish832+81#25236#25155
TOTALS1839409+1430
📊

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