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BOSTON MARATHON 2025

Nicholas Johnson

Bib: 4183•M

TX

Masters
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0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Masters (Masters Men)
#0 / 10463
Top 4%
Age Group (M45-49)
#0 / 2386
Top 4%
Race Day Weather
50°/40°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:22
Rank: #2049
Start → 5K
19:22 | 6:14/mi
10K· 6.21 mi
38:26
Rank: #1803 (+246)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:40
Rank: #1802 (+1)
10K → 15K
19:14 | 6:11/mi
20K· 12.43 mi
1:17:09
Rank: #1795 (+7)
15K → 20K
19:29 | 6:16/mi
Half· 13.11 mi
1:21:24
Rank: #1811 (-16)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:36:45
Rank: #1826 (-15)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:57:09
Rank: #1867 (-41)
25K → 30K
20:24 | 6:34/mi
20M
2:06:28
Rank: #1941 (-74)
30K → 20M
9:19 | 6:51/mi
21M
2:13:59
Rank: #2059 (-118)
20M → 21M
7:31 | 7:31/mi
35K· 21.75 mi
2:18:51
Rank: #2063 (-4)
21M → 35K
4:52 | 6:30/mi
23M
2:27:49
Rank: #2157 (-94)
35K → 23M
8:58 | 7:10/mi
24M
2:34:32
Rank: #2156 (+1)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:40:29
Rank: #2188 (-32)
24M → 40K
5:57 | 6:58/mi
25.2M
2:43:12
Rank: #2223 (-35)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:50:10
Rank: #2298 (-75)
25.2M → Finish
6:58 | 6:50/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:21:24
Pace6:13 /mi
2nd Half
Distance13.11 mi
Time1:28:46
Pace6:46 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1819:226:1419:22
6:14
-
10K
6.21 mi10:40:2238:266:1119:04
6:08
-0:06
15K
9.32 mi10:59:3657:406:1119:14
6:11
+0:03
20K
12.43 mi11:19:051:17:096:1219:29
6:16
+0:05
Half
13.11 mi11:23:201:21:246:134:15
6:14
-0:02
25K
15.53 mi11:38:411:36:456:1415:21
6:20
+0:06
30K
18.64 mi11:59:051:57:096:1720:24
6:34
+0:14
20M
20.00 mi12:08:242:06:286:199:19
6:51
+0:17
21M
21.00 mi12:15:552:13:596:237:31
7:31
+0:40
35K
21.75 mi12:20:472:18:516:234:52
6:30
-1:01
23M
23.00 mi12:29:452:27:496:268:58
7:10
+0:40
24M
24.00 mi12:36:282:34:326:266:43
6:43
-0:27
40K
24.85 mi12:42:252:40:296:275:57
6:58
+0:15
25.2M
25.20 mi12:45:082:43:126:292:43
7:53
+0:55
Finish
26.22 mi12:52:062:50:106:306:58
6:50
-1:03

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:08 /mi

Average Pace

6:30 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:21:24

48% of race

Time at Steady Pace

47:20

28% of race

Time at Slower Pace

41:26

24% of race

Average Pace: 6:29 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:1819:226:1419:22
6:14
#2049
10K
6.21 mi10:40:2238:266:1119:04
6:08
#1803
15K
9.32 mi10:59:3657:406:1119:14
6:11
#1802
20K
12.43 mi11:19:051:17:096:1219:29
6:16
#1795
Half
13.11 mi11:23:201:21:246:134:15
6:14
#1811
25K
15.53 mi11:38:411:36:456:1415:21
6:20
#1826
30K
18.64 mi11:59:051:57:096:1720:24
6:34
#1867
20M
20.00 mi12:08:242:06:286:199:19
6:51
#1941
21M
21.00 mi12:15:552:13:596:237:31
7:31
#2059
35K
21.75 mi12:20:472:18:516:234:52
6:30
#2063
23M
23.00 mi12:29:452:27:496:268:58
7:10
#2157
24M
24.00 mi12:36:282:34:326:266:43
6:43
#2156
40K
24.85 mi12:42:252:40:296:275:57
6:58
#2188
25.2M
25.20 mi12:45:082:43:126:292:43
7:53
#2223
Finish
26.22 mi12:52:062:50:106:306:58
6:50
#2298
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2049195119511813(Top 6%)1724(Top 11%)1724(Top 72%)
10K6.21 mi3.10 mi1803+2461714+2371714+2371616(Top 6%)1538(Top 10%)1538(Top 64%)
15K9.32 mi3.11 mi1802+1171417141813(Top 6%)1724(Top 11%)1724(Top 72%)
20K12.43 mi3.11 mi1795+71706+81706+81892(Top 7%)1802(Top 11%)1802(Top 76%)
Half13.11 mi0.68 mi1811-161722-161722-162126(Top 7%)2030(Top 13%)2030(Top 85%)
25K15.53 mi2.42 mi1826-151738-161738-162021(Top 7%)1925(Top 12%)1925(Top 81%)
30K18.64 mi3.11 mi1867-411778-401778-402254(Top 8%)2133(Top 13%)2133(Top 89%)
20M20.00 mi1.36 mi1941-741848-701848-703210(Top 11%)2966(Top 18%)2966(Top 124%)
21M21.00 mi1.00 mi2059-1181959-1111959-1114652(Top 16%)4109(Top 26%)4109(Top 172%)
35K21.75 mi0.75 mi2063-41962-31962-32456(Top 9%)2289(Top 14%)2289(Top 96%)
23M23.00 mi1.25 mi2157-942053-912053-914630(Top 16%)4045(Top 25%)4045(Top 170%)
24M24.00 mi1.00 mi2156+12050+32050+33037(Top 11%)2750(Top 17%)2750(Top 115%)
40K24.85 mi0.85 mi2188-322079-292079-293638(Top 13%)3208(Top 20%)3208(Top 134%)
25.2M25.20 mi0.35 mi2223-352112-332112-335182(Top 18%)4203(Top 26%)4203(Top 176%)
Finish26.22 mi1.02 mi2298-752181-692181-694675(Top 16%)3899(Top 24%)3899(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1813

Males

1724

M45-49

1724

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1616

Males

1538

M45-49

1538

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1813

Males

1724

M45-49

1724

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1892

Males

1802

M45-49

1802

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2126

Males

2030

M45-49

2030

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2021

Males

1925

M45-49

1925

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2254

Males

2133

M45-49

2133

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3210

Males

2966

M45-49

2966

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4652

Males

4109

M45-49

4109

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2456

Males

2289

M45-49

2289

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4630

Males

4045

M45-49

4045

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3037

Males

2750

M45-49

2750

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3638

Males

3208

M45-49

3208

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5182

Males

4203

M45-49

4203

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4675

Males

3899

M45-49

3899

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
665
Passed By
914
Net Change
-249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2049
5K → 10K27024+246#2049#1803
10K → 15K5453+1#1803#1802
15K → 20K6255+7#1802#1795
20K → Half521-16#1795#1811
Half → 25K4560-15#1811#1826
25K → 30K71112-41#1826#1867
30K → 20M1488-74#1867#1941
20M → 21M15133-118#1941#2059
21M → 35K2428-4#2059#2063
35K → 23M20114-94#2063#2157
23M → 24M3635+1#2157#2156
24M → 40K2658-32#2156#2188
40K → 25.2M843-35#2188#2223
25.2M → Finish1590-75#2223#2298
TOTALS665914-249
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing