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BOSTON MARATHON 2025

Nicolas Smith

Bib: 6699•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
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
20:03
Rank: #3505
Start → 5K
6:27/mi
20:03 split
10K· 6.21 mi
39:29
Rank: #2764 (+741)
5K → 10K
6:15/mi
19:26 split
15K· 9.32 mi
58:59
Rank: #2564 (+200)
10K → 15K
6:17/mi
19:30 split
20K· 12.43 mi
1:18:58
Rank: #2585 (-21)
15K → 20K
6:26/mi
19:59 split
Half· 13.11 mi
1:23:18
Rank: #2592 (-7)
20K → Half
6:21/mi
4:20 split
25K· 15.53 mi
1:39:27
Rank: #2766 (-174)
Half → 25K
6:40/mi
16:09 split
30K· 18.64 mi
2:06:40
Rank: #5113 (-2347)
25K → 30K
8:46/mi
27:13 split
20M
2:16:50
Rank: #5289 (-176)
30K → 20M
7:29/mi
10:10 split
21M
2:24:52
Rank: #5429 (-140)
20M → 21M
8:02/mi
8:02 split
35K· 21.75 mi
2:31:43
Rank: #5875 (-446)
21M → 35K
9:09/mi
6:51 split
23M
2:44:04
Rank: #6617 (-742)
35K → 23M
9:52/mi
12:21 split
24M
2:53:50
Rank: #7300 (-683)
23M → 24M
9:46/mi
9:46 split
40K· 24.85 mi
3:03:01
Rank: #8091 (-791)
24M → 40K
10:44/mi
9:11 split
25.2M
3:07:53
Rank: #8714 (-623)
40K → 25.2M
14:07/mi
4:52 split
Finish· 26.22 mi
3:18:26
Rank: #9652 (-938)
25.2M → Finish
10:21/mi
10:33 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:18
Pace6:21 /mi
2nd Half
Distance13.11 mi
Time1:55:08
Pace8:47 /mi
📊Positive Split: 38.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:0320:036:2720:03
6:27
-
10K
6.21 mi10:46:2939:296:2119:26
6:15
-0:12
15K
9.32 mi11:05:5958:596:2019:30
6:17
+0:02
20K
12.43 mi11:25:581:18:586:2119:59
6:26
+0:09
Half
13.11 mi11:30:181:23:186:214:20
6:21
-0:05
25K
15.53 mi11:46:271:39:276:2416:09
6:40
+0:19
30K
18.64 mi12:13:402:06:406:4827:13
8:46
+2:06
20M
20.00 mi12:23:502:16:506:5010:10
7:29
-1:17
21M
21.00 mi12:31:522:24:526:548:02
8:02
+0:33
35K
21.75 mi12:38:432:31:436:596:51
9:09
+1:07
23M
23.00 mi12:51:042:44:047:0812:21
9:52
+0:43
24M
24.00 mi13:00:502:53:507:159:46
9:46
-0:06
40K
24.85 mi13:10:013:03:017:229:11
10:44
+0:58
25.2M
25.20 mi13:14:533:07:537:274:52
14:07
+3:23
Finish
26.22 mi13:25:263:18:267:3410:33
10:21
-3:46

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

6:15 /mi

Average Pace

7:34 /mi

Slowest Pace

14:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:27

50% of race

Time at Steady Pace

45:25

23% of race

Time at Slower Pace

53:34

27% of race

Average Pace: 7:34 /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 mi10:27:0320:036:2720:03
6:27
#3505
10K
6.21 mi10:46:2939:296:2119:26
6:15
#2764
15K
9.32 mi11:05:5958:596:2019:30
6:17
#2564
20K
12.43 mi11:25:581:18:586:2119:59
6:26
#2585
Half
13.11 mi11:30:181:23:186:214:20
6:21
#2592
25K
15.53 mi11:46:271:39:276:2416:09
6:40
#2766
30K
18.64 mi12:13:402:06:406:4827:13
8:46
#5113
20M
20.00 mi12:23:502:16:506:5010:10
7:29
#5289
21M
21.00 mi12:31:522:24:526:548:02
8:02
#5429
35K
21.75 mi12:38:432:31:436:596:51
9:09
#5875
23M
23.00 mi12:51:042:44:047:0812:21
9:52
#6617
24M
24.00 mi13:00:502:53:507:159:46
9:46
#7300
40K
24.85 mi13:10:013:03:017:229:11
10:44
#8091
25.2M
25.20 mi13:14:533:07:537:274:52
14:07
#8714
Finish
26.22 mi13:25:263:18:267:3410:33
10:21
#9652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3505333233322241(Top 8%)2137(Top 13%)2137(Top 38%)
10K6.21 mi3.10 mi2764+7412633+6992633+6992183(Top 8%)2086(Top 13%)2086(Top 37%)
15K9.32 mi3.11 mi2564+2002444+1892444+1892241(Top 8%)2137(Top 13%)2137(Top 38%)
20K12.43 mi3.11 mi2585-212466-222466-222722(Top 10%)2592(Top 16%)2592(Top 46%)
Half13.11 mi0.68 mi2592-72475-92475-92852(Top 10%)2728(Top 17%)2728(Top 48%)
25K15.53 mi2.42 mi2766-1742638-1632638-1633880(Top 14%)3635(Top 23%)3635(Top 64%)
30K18.64 mi3.11 mi5113-23474708-20704708-207016350(Top 58%)10640(Top 66%)10640(Top 189%)
20M20.00 mi1.36 mi5289-1764848-1404848-1406888(Top 24%)5773(Top 36%)5773(Top 102%)
21M21.00 mi1.00 mi5429-1404960-1124960-1127529(Top 27%)5994(Top 37%)5994(Top 106%)
35K21.75 mi0.75 mi5875-4465305-3455305-34518943(Top 67%)11457(Top 71%)11457(Top 203%)
23M23.00 mi1.25 mi6617-7425827-5225827-52219991(Top 70%)11886(Top 74%)11886(Top 211%)
24M24.00 mi1.00 mi7300-6836261-4346261-43420593(Top 73%)12150(Top 75%)12150(Top 215%)
40K24.85 mi0.85 mi8091-7916730-4696730-46922525(Top 79%)12995(Top 81%)12995(Top 230%)
25.2M25.20 mi0.35 mi8714-6237084-3547084-35426389(Top 93%)14940(Top 93%)14940(Top 265%)
Finish26.22 mi1.02 mi9652-9387556-4727556-47223903(Top 84%)13712(Top 85%)13712(Top 243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2241

Males

2137

M18-39

2137

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2183

Males

2086

M18-39

2086

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2241

Males

2137

M18-39

2137

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2722

Males

2592

M18-39

2592

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2852

Males

2728

M18-39

2728

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3880

Males

3635

M18-39

3635

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16350

Males

10640

M18-39

10640

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6888

Males

5773

M18-39

5773

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7529

Males

5994

M18-39

5994

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18943

Males

11457

M18-39

11457

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19991

Males

11886

M18-39

11886

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20593

Males

12150

M18-39

12150

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22525

Males

12995

M18-39

12995

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26389

Males

14940

M18-39

14940

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23903

Males

13712

M18-39

13712

Passing Analysis

Category:
Athletes Passed
1162
Passed By
7309
Net Change
-6147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3505
5K → 10K7454+741#3505#2764
10K → 15K21111+200#2764#2564
15K → 20K6889-21#2564#2585
20K → Half1219-7#2585#2592
Half → 25K25199-174#2592#2766
25K → 30K42351-2347#2766#5113
30K → 20M31207-176#5113#5289
20M → 21M33173-140#5289#5429
21M → 35K7453-446#5429#5875
35K → 23M12754-742#5875#6617
23M → 24M7690-683#6617#7300
24M → 40K5796-791#7300#8091
40K → 25.2M2625-623#8091#8714
25.2M → Finish0938-938#8714#9652
TOTALS11627309-6147
📊

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