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BOSTON MARATHON 2025

Nicholas Kynoch

Bib: 29368•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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:25/mi
29:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
57:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:02/mi
1:26:01
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:54:47
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
2:01:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:43/mi
2:24:33
↑ 66↓ 880.2%
30K· 18.64 mi
10:23/mi
2:56:48
↑ 181↓ 1480.2%
20M
10:29/mi
3:11:03
↑ 64↓ 500.2%
21M
12:36/mi
3:23:39
↑ 106↓ 241.6%
35K· 21.75 mi
10:20/mi
3:31:23
↑ 17↓ 861.7%
23M
9:55/mi
3:43:48
↑ 23↓ 630.6%
24M
9:49/mi
3:53:37
↓ 821.3%
40K· 24.85 mi
10:08/mi
4:02:17
↓ 200.3%
25.2M
11:04/mi
4:06:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:17/mi
4:15:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:00
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:14:34
Pace10:16 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0329:159:2529:15
9:25
-
10K
6.21 mi12:16:4657:589:2028:43
9:15
-0:10
15K
9.32 mi12:44:491:26:019:1428:03
9:02
-0:13
20K
12.43 mi13:13:351:54:479:1428:46
9:16
+0:14
Half
13.11 mi13:19:482:01:009:146:13
9:07
-0:09
25K
15.53 mi13:43:212:24:339:1823:33
9:43
+0:36
30K
18.64 mi14:15:362:56:489:2932:15
10:23
+0:40
20M
20.00 mi14:29:513:11:039:3314:15
10:29
+0:06
21M
21.00 mi14:42:273:23:399:4212:36
12:36
+2:07
35K
21.75 mi14:50:113:31:239:437:44
10:20
-2:16
23M
23.00 mi15:02:363:43:489:4412:25
9:55
-0:25
24M
24.00 mi15:12:253:53:379:449:49
9:49
-0:06
40K
24.85 mi15:21:054:02:179:458:40
10:08
+0:19
25.2M
25.20 mi15:24:544:06:069:463:49
11:04
+0:56
Finish
26.22 mi15:34:224:15:349:459:28
9:17
-1:47

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

9:02 /mi

Average Pace

9:45 /mi

Slowest Pace

12:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:13

40% of race

Time at Steady Pace

1:23:42

33% of race

Time at Slower Pace

1:10:39

28% of race

Average Pace: 9:45 /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 mi11:48:0329:159:2529:15
9:25
#23949
10K
6.21 mi12:16:4657:589:2028:43
9:15
#23647
15K
9.32 mi12:44:491:26:019:1428:03
9:02
#23207
20K
12.43 mi13:13:351:54:479:1428:46
9:16
#22934
Half
13.11 mi13:19:482:01:009:146:13
9:07
#22890
25K
15.53 mi13:43:212:24:339:1823:33
9:43
#22805
30K
18.64 mi14:15:362:56:489:2932:15
10:23
#22759
20M
20.00 mi14:29:513:11:039:3314:15
10:29
#22720
21M
21.00 mi14:42:273:23:399:4212:36
12:36
#22860
35K
21.75 mi14:50:113:31:239:437:44
10:20
#22850
23M
23.00 mi15:02:363:43:489:4412:25
9:55
#22688
24M
24.00 mi15:12:253:53:379:449:49
9:49
#22587
40K
24.85 mi15:21:054:02:179:458:40
10:08
#22527
25.2M
25.20 mi15:24:544:06:069:463:49
11:04
#22496
Finish
26.22 mi15:34:224:15:349:459:28
9:17
#22422
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23949142121421222161(Top 78%)13459(Top 84%)13459(Top 239%)
10K6.21 mi3.10 mi23647+30214077+13514077+13523345(Top 82%)13961(Top 87%)13961(Top 247%)
15K9.32 mi3.11 mi23207+44013901+17613901+17622161(Top 78%)13459(Top 84%)13459(Top 239%)
20K12.43 mi3.11 mi22934+27313782+11913782+11922121(Top 78%)13414(Top 83%)13414(Top 238%)
Half13.11 mi0.68 mi22890+4413765+1713765+1722240(Top 78%)13441(Top 83%)13441(Top 238%)
25K15.53 mi2.42 mi22805+8513706+5913706+5922530(Top 79%)13521(Top 84%)13521(Top 240%)
30K18.64 mi3.11 mi22759+4613651+5513651+5522654(Top 80%)13459(Top 84%)13459(Top 239%)
20M20.00 mi1.36 mi22720+3913602+4913602+4922367(Top 79%)13221(Top 82%)13221(Top 234%)
21M21.00 mi1.00 mi22860-14013645-4313645-4324528(Top 86%)14157(Top 88%)14157(Top 251%)
35K21.75 mi0.75 mi22850+1013631+1413631+1422785(Top 80%)13296(Top 83%)13296(Top 236%)
23M23.00 mi1.25 mi22688+16213532+9913532+9920231(Top 71%)12020(Top 75%)12020(Top 213%)
24M24.00 mi1.00 mi22587+10113458+7413458+7420776(Top 73%)12236(Top 76%)12236(Top 217%)
40K24.85 mi0.85 mi22527+6013421+3713421+3720893(Top 74%)12236(Top 76%)12236(Top 217%)
25.2M25.20 mi0.35 mi22496+3113399+2213399+2220838(Top 73%)12214(Top 76%)12214(Top 216%)
Finish26.22 mi1.02 mi22422+7413348+5113348+5120336(Top 72%)11979(Top 74%)11979(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22161

Males

13459

M18-39

13459

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23345

Males

13961

M18-39

13961

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22161

Males

13459

M18-39

13459

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22121

Males

13414

M18-39

13414

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22240

Males

13441

M18-39

13441

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22530

Males

13521

M18-39

13521

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22654

Males

13459

M18-39

13459

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22367

Males

13221

M18-39

13221

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24528

Males

14157

M18-39

14157

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22785

Males

13296

M18-39

13296

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20231

Males

12020

M18-39

12020

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20776

Males

12236

M18-39

12236

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

20893

Males

12236

M18-39

12236

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20838

Males

12214

M18-39

12214

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20336

Males

11979

M18-39

11979

Passing Analysis

Category:
Athletes Passed
2274
Passed By
747
Net Change
+1527
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23949
5K → 10K416114+302#23949#23647
10K → 15K46929+440#23647#23207
15K → 20K31340+273#23207#22934
20K → Half5410+44#22934#22890
Half → 25K189104+85#22890#22805
25K → 30K175129+46#22805#22759
30K → 20M9758+39#22759#22720
20M → 21M32172-140#22720#22860
21M → 35K4838+10#22860#22850
35K → 23M1697+162#22850#22688
23M → 24M11413+101#22688#22587
24M → 40K7414+60#22587#22527
40K → 25.2M387+31#22527#22496
25.2M → Finish8612+74#22496#22422
TOTALS2274747+1527
📊

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