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BOSTON MARATHON 2025

Dalton Barton

Bib: 5147•M

CO

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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
24:31
Rank: #15588
Start → 5K
24:31 | 7:53/mi
10K· 6.21 mi
48:41
Rank: #15089 (+499)
5K → 10K
24:10 | 7:47/mi
15K· 9.32 mi
1:13:03
Rank: #14961 (+128)
10K → 15K
24:22 | 7:51/mi
20K· 12.43 mi
1:38:23
Rank: #15245 (-284)
15K → 20K
25:20 | 8:09/mi
Half· 13.11 mi
1:43:46
Rank: #15220 (+25)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:05:10
Rank: #16002 (-782)
Half → 25K
21:24 | 8:50/mi
30K· 18.64 mi
2:32:38
Rank: #16141 (-139)
25K → 30K
27:28 | 8:50/mi
20M
2:45:00
Rank: #16196 (-55)
30K → 20M
12:22 | 9:06/mi
21M
2:54:53
Rank: #16237 (-41)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:01:11
Rank: #16173 (+64)
21M → 35K
6:18 | 8:25/mi
23M
3:12:23
Rank: #16100 (+73)
35K → 23M
11:12 | 8:57/mi
24M
3:20:56
Rank: #16039 (+61)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:28:31
Rank: #16008 (+31)
24M → 40K
7:35 | 8:52/mi
25.2M
3:32:15
Rank: #16089 (-81)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:40:48
Rank: #16060 (+29)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:46
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:57:02
Pace8:56 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4024:317:5324:31
7:53
-
10K
6.21 mi11:39:5048:417:5024:10
7:47
-0:06
15K
9.32 mi12:04:121:13:037:5024:22
7:51
+0:04
20K
12.43 mi12:29:321:38:237:5525:20
8:09
+0:18
Half
13.11 mi12:34:551:43:467:555:23
7:53
-0:16
25K
15.53 mi12:56:192:05:108:0321:24
8:50
+0:57
30K
18.64 mi13:23:472:32:388:1127:28
8:50
0:00
20M
20.00 mi13:36:092:45:008:1512:22
9:06
+0:16
21M
21.00 mi13:46:022:54:538:209:53
9:53
+0:47
35K
21.75 mi13:52:203:01:118:206:18
8:25
-1:28
23M
23.00 mi14:03:323:12:238:2211:12
8:57
+0:32
24M
24.00 mi14:12:053:20:568:228:33
8:33
-0:24
40K
24.85 mi14:19:403:28:318:237:35
8:52
+0:19
25.2M
25.20 mi14:23:243:32:158:253:44
10:50
+1:58
Finish
26.22 mi14:31:573:40:488:268:33
8:23
-2:27

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

7:47 /mi

Average Pace

8:26 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:26

36% of race

Time at Steady Pace

1:56:23

53% of race

Time at Slower Pace

25:59

12% of race

Average Pace: 8:25 /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 mi11:15:4024:317:5324:31
7:53
#15588
10K
6.21 mi11:39:5048:417:5024:10
7:47
#15089
15K
9.32 mi12:04:121:13:037:5024:22
7:51
#14961
20K
12.43 mi12:29:321:38:237:5525:20
8:09
#15245
Half
13.11 mi12:34:551:43:467:555:23
7:53
#15220
25K
15.53 mi12:56:192:05:108:0321:24
8:50
#16002
30K
18.64 mi13:23:472:32:388:1127:28
8:50
#16141
20M
20.00 mi13:36:092:45:008:1512:22
9:06
#16196
21M
21.00 mi13:46:022:54:538:209:53
9:53
#16237
35K
21.75 mi13:52:203:01:118:206:18
8:25
#16173
23M
23.00 mi14:03:323:12:238:2211:12
8:57
#16100
24M
24.00 mi14:12:053:20:568:228:33
8:33
#16039
40K
24.85 mi14:19:403:28:318:237:35
8:52
#16008
25.2M
25.20 mi14:23:243:32:158:253:44
10:50
#16089
Finish
26.22 mi14:31:573:40:488:268:33
8:23
#16060
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15588106561065614735(Top 52%)10253(Top 64%)10253(Top 182%)
10K6.21 mi3.10 mi15089+49910450+20610450+20614614(Top 51%)10256(Top 64%)10256(Top 182%)
15K9.32 mi3.11 mi14961+12810386+6410386+6414735(Top 52%)10253(Top 64%)10253(Top 182%)
20K12.43 mi3.11 mi15245-28410479-9310479-9316006(Top 56%)10746(Top 67%)10746(Top 190%)
Half13.11 mi0.68 mi15220+2510468+1110468+1114979(Top 53%)10341(Top 64%)10341(Top 183%)
25K15.53 mi2.42 mi16002-78210788-32010788-32019047(Top 67%)11990(Top 74%)11990(Top 213%)
30K18.64 mi3.11 mi16141-13910785+310785+316829(Top 59%)10841(Top 67%)10841(Top 192%)
20M20.00 mi1.36 mi16196-5510769+1610769+1617296(Top 61%)10941(Top 68%)10941(Top 194%)
21M21.00 mi1.00 mi16237-4110762+710762+717825(Top 63%)11074(Top 69%)11074(Top 196%)
35K21.75 mi0.75 mi16173+6410707+5510707+5514970(Top 53%)9719(Top 60%)9719(Top 172%)
23M23.00 mi1.25 mi16100+7310642+6510642+6515930(Top 56%)10042(Top 62%)10042(Top 178%)
24M24.00 mi1.00 mi16039+6110594+4810594+4814809(Top 52%)9502(Top 59%)9502(Top 168%)
40K24.85 mi0.85 mi16008+3110556+3810556+3815563(Top 55%)9697(Top 60%)9697(Top 172%)
25.2M25.20 mi0.35 mi16089-8110586-3010586-3020061(Top 71%)11803(Top 73%)11803(Top 209%)
Finish26.22 mi1.02 mi16060+2910553+3310553+3315492(Top 55%)9707(Top 60%)9707(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14735

Males

10253

M18-39

10253

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14614

Males

10256

M18-39

10256

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14735

Males

10253

M18-39

10253

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

16006

Males

10746

M18-39

10746

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14979

Males

10341

M18-39

10341

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

19047

Males

11990

M18-39

11990

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16829

Males

10841

M18-39

10841

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17296

Males

10941

M18-39

10941

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17825

Males

11074

M18-39

11074

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14970

Males

9719

M18-39

9719

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15930

Males

10042

M18-39

10042

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14809

Males

9502

M18-39

9502

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15563

Males

9697

M18-39

9697

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20061

Males

11803

M18-39

11803

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15492

Males

9707

M18-39

9707

Passing Analysis

Category:
Athletes Passed
1987
Passed By
2459
Net Change
-472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15588
5K → 10K619120+499#15588#15089
10K → 15K271143+128#15089#14961
15K → 20K132416-284#14961#15245
20K → Half4924+25#15245#15220
Half → 25K35817-782#15220#16002
25K → 30K179318-139#16002#16141
30K → 20M100155-55#16141#16196
20M → 21M88129-41#16196#16237
21M → 35K9531+64#16237#16173
35K → 23M14471+73#16173#16100
23M → 24M9534+61#16100#16039
24M → 40K8554+31#16039#16008
40K → 25.2M1596-81#16008#16089
25.2M → Finish8051+29#16089#16060
TOTALS19872459-472
📊

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