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BOSTON MARATHON 2025

Andrew Dalton

Bib: 3634•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #3725
Start → 5K
6:29/mi
20:09 split
10K· 6.21 mi
40:19
Rank: #3688 (+37)
5K → 10K
6:29/mi
20:10 split
15K· 9.32 mi
1:00:11
Rank: #3363 (+325)
10K → 15K
6:24/mi
19:52 split
20K· 12.43 mi
1:20:13
Rank: #3193 (+170)
15K → 20K
6:27/mi
20:02 split
Half· 13.11 mi
1:24:33
Rank: #3165 (+28)
20K → Half
6:21/mi
4:20 split
25K· 15.53 mi
1:40:29
Rank: #3180 (-15)
Half → 25K
6:34/mi
15:56 split
30K· 18.64 mi
2:01:34
Rank: #3163 (+17)
25K → 30K
6:47/mi
21:05 split
20M
2:11:00
Rank: #3161 (+2)
30K → 20M
6:57/mi
9:26 split
21M
2:18:23
Rank: #3168 (-7)
20M → 21M
7:23/mi
7:23 split
35K· 21.75 mi
2:23:16
Rank: #3119 (+49)
21M → 35K
6:32/mi
4:53 split
23M
2:32:03
Rank: #3116 (+3)
35K → 23M
7:01/mi
8:47 split
24M
2:39:00
Rank: #3135 (-19)
23M → 24M
6:57/mi
6:57 split
40K· 24.85 mi
2:45:05
Rank: #3136 (-1)
24M → 40K
7:07/mi
6:05 split
25.2M
2:47:48
Rank: #3152 (-16)
40K → 25.2M
7:53/mi
2:43 split
Finish· 26.22 mi
2:54:54
Rank: #3219 (-67)
25.2M → Finish
6:58/mi
7:06 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:33
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:30:21
Pace6:54 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2220:096:2920:09
6:29
-
10K
6.21 mi10:42:3240:196:2920:10
6:29
0:00
15K
9.32 mi11:02:241:00:116:2719:52
6:24
-0:05
20K
12.43 mi11:22:261:20:136:2720:02
6:27
+0:03
Half
13.11 mi11:26:461:24:336:274:20
6:21
-0:06
25K
15.53 mi11:42:421:40:296:2815:56
6:34
+0:13
30K
18.64 mi12:03:472:01:346:3121:05
6:47
+0:13
20M
20.00 mi12:13:132:11:006:339:26
6:57
+0:10
21M
21.00 mi12:20:362:18:236:357:23
7:23
+0:26
35K
21.75 mi12:25:292:23:166:354:53
6:32
-0:51
23M
23.00 mi12:34:162:32:036:378:47
7:01
+0:29
24M
24.00 mi12:41:132:39:006:386:57
6:57
-0:04
40K
24.85 mi12:47:182:45:056:396:05
7:07
+0:10
25.2M
25.20 mi12:50:012:47:486:402:43
7:53
+0:46
Finish
26.22 mi12:57:072:54:546:417:06
6:58
-0:55

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

6:21 /mi

Average Pace

6:41 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:22

60% of race

Time at Steady Pace

44:34

25% of race

Time at Slower Pace

24:58

14% of race

Average Pace: 6:40 /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 mi10:22:2220:096:2920:09
6:29
#3725
10K
6.21 mi10:42:3240:196:2920:10
6:29
#3688
15K
9.32 mi11:02:241:00:116:2719:52
6:24
#3363
20K
12.43 mi11:22:261:20:136:2720:02
6:27
#3193
Half
13.11 mi11:26:461:24:336:274:20
6:21
#3165
25K
15.53 mi11:42:421:40:296:2815:56
6:34
#3180
30K
18.64 mi12:03:472:01:346:3121:05
6:47
#3163
20M
20.00 mi12:13:132:11:006:339:26
6:57
#3161
21M
21.00 mi12:20:362:18:236:357:23
7:23
#3168
35K
21.75 mi12:25:292:23:166:354:53
6:32
#3119
23M
23.00 mi12:34:162:32:036:378:47
7:01
#3116
24M
24.00 mi12:41:132:39:006:386:57
6:57
#3135
40K
24.85 mi12:47:182:45:056:396:05
7:07
#3136
25.2M
25.20 mi12:50:012:47:486:402:43
7:53
#3152
Finish
26.22 mi12:57:072:54:546:417:06
6:58
#3219
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3725352835282901(Top 10%)2765(Top 17%)2765(Top 49%)
10K6.21 mi3.10 mi3688+373494+343494+343641(Top 13%)3440(Top 21%)3440(Top 61%)
15K9.32 mi3.11 mi3363+3253194+3003194+3002901(Top 10%)2765(Top 17%)2765(Top 49%)
20K12.43 mi3.11 mi3193+1703040+1543040+1542804(Top 10%)2669(Top 17%)2669(Top 47%)
Half13.11 mi0.68 mi3165+283016+243016+242780(Top 10%)2656(Top 16%)2656(Top 47%)
25K15.53 mi2.42 mi3180-153028-123028-123269(Top 12%)3095(Top 19%)3095(Top 55%)
30K18.64 mi3.11 mi3163+173007+213007+213351(Top 12%)3129(Top 19%)3129(Top 55%)
20M20.00 mi1.36 mi3161+22994+132994+133733(Top 13%)3432(Top 21%)3432(Top 61%)
21M21.00 mi1.00 mi3168-73001-73001-73998(Top 14%)3621(Top 22%)3621(Top 64%)
35K21.75 mi0.75 mi3119+492953+482953+482590(Top 9%)2409(Top 15%)2409(Top 43%)
23M23.00 mi1.25 mi3116+32946+72946+73810(Top 13%)3423(Top 21%)3423(Top 61%)
24M24.00 mi1.00 mi3135-192960-142960-144326(Top 15%)3778(Top 23%)3778(Top 67%)
40K24.85 mi0.85 mi3136-12958+22958+24527(Top 16%)3859(Top 24%)3859(Top 68%)
25.2M25.20 mi0.35 mi3152-162967-92967-95194(Top 18%)4215(Top 26%)4215(Top 75%)
Finish26.22 mi1.02 mi3219-673024-573024-575468(Top 19%)4392(Top 27%)4392(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2901

Males

2765

M18-39

2765

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3641

Males

3440

M18-39

3440

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2901

Males

2765

M18-39

2765

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2804

Males

2669

M18-39

2669

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2780

Males

2656

M18-39

2656

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

3269

Males

3095

M18-39

3095

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3351

Males

3129

M18-39

3129

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3733

Males

3432

M18-39

3432

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3998

Males

3621

M18-39

3621

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2590

Males

2409

M18-39

2409

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3810

Males

3423

M18-39

3423

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

4326

Males

3778

M18-39

3778

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4527

Males

3859

M18-39

3859

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5194

Males

4215

M18-39

4215

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

5468

Males

4392

M18-39

4392

Passing Analysis

Category:
Athletes Passed
1250
Passed By
744
Net Change
+506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3725
5K → 10K151114+37#3725#3688
10K → 15K33611+325#3688#3363
15K → 20K19020+170#3363#3193
20K → Half346+28#3193#3165
Half → 25K6681-15#3165#3180
25K → 30K11497+17#3180#3163
30K → 20M6159+2#3163#3161
20M → 21M5360-7#3161#3168
21M → 35K556+49#3168#3119
35K → 23M6865+3#3119#3116
23M → 24M3756-19#3116#3135
24M → 40K3839-1#3135#3136
40K → 25.2M2137-16#3136#3152
25.2M → Finish2693-67#3152#3219
TOTALS1250744+506
📊

Passing Visuals

Category:
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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