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BOSTON MARATHON 2025

Nikolaos Kakoulidis

Bib: 10805 M GR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M45-49)
#0 / 2386
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:09/mi
22:14
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:11/mi
44:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:09/mi
1:06:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:13/mi
1:29:11
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:05/mi
1:34:01
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:10/mi
1:51:23
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:20/mi
2:14:09
↑ 181↓ 1480.2%
138 ft elev
20M
7:22/mi
2:24:10
↑ 64↓ 500.2%
148 ft elev
21M
7:40/mi
2:31:50
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:04/mi
2:37:07
↑ 17↓ 861.7%
156 ft elev
23M
7:07/mi
2:46:02
↑ 23↓ 630.6%
116 ft elev
24M
6:54/mi
2:52:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:59/mi
2:58:54
↓ 200.3%
20 ft elev
25.2M
7:41/mi
3:01:33
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:34/mi
3:08:14
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:01
Pace7:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:13
Pace7:11 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2622:147:0922:14
7:09
-
10K
6.21 mi11:11:4644:347:1022:20
7:11
+0:02
15K
9.32 mi11:33:591:06:477:1022:13
7:09
-0:02
20K
12.43 mi11:56:231:29:117:1122:24
7:13
+0:04
Half
13.11 mi12:01:131:34:017:104:50
7:05
-0:08
25K
15.53 mi12:18:351:51:237:1017:22
7:10
+0:05
30K
18.64 mi12:41:212:14:097:1222:46
7:20
+0:10
20M
20.00 mi12:51:222:24:107:1210:01
7:22
+0:02
21M
21.00 mi12:59:022:31:507:147:40
7:40
+0:18
35K
21.75 mi13:04:192:37:077:135:17
7:04
-0:36
23M
23.00 mi13:13:142:46:027:138:55
7:07
+0:03
24M
24.00 mi13:20:082:52:567:126:54
6:54
-0:13
40K
24.85 mi13:26:062:58:547:125:58
6:59
+0:05
25.2M
25.20 mi13:28:453:01:337:122:39
7:41
+0:42
Finish
26.22 mi13:35:263:08:147:116:41
6:34
-1:07

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

6:34 /mi

Average Pace

7:11 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:08

77% of race

Time at Steady Pace

43:06

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /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 mi10:49:2622:147:0922:14
7:09
#9097
10K
6.21 mi11:11:4644:347:1022:20
7:11
#9206
15K
9.32 mi11:33:591:06:477:1022:13
7:09
#9022
20K
12.43 mi11:56:231:29:117:1122:24
7:13
#8774
Half
13.11 mi12:01:131:34:017:104:50
7:05
#8715
25K
15.53 mi12:18:351:51:237:1017:22
7:10
#8421
30K
18.64 mi12:41:212:14:097:1222:46
7:20
#7996
20M
20.00 mi12:51:222:24:107:1210:01
7:22
#7811
21M
21.00 mi12:59:022:31:507:147:40
7:40
#7602
35K
21.75 mi13:04:192:37:077:135:17
7:04
#7485
23M
23.00 mi13:13:142:46:027:138:55
7:07
#7226
24M
24.00 mi13:20:082:52:567:126:54
6:54
#7045
40K
24.85 mi13:26:062:58:547:125:58
6:59
#6859
25.2M
25.20 mi13:28:453:01:337:122:39
7:41
#6777
Finish
26.22 mi13:35:263:08:147:116:41
6:34
#6550
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9097766876688693(Top 31%)7364(Top 46%)7364(Top 309%)
10K6.21 mi3.10 mi9206-1097722-547722-549370(Top 33%)7800(Top 48%)7800(Top 327%)
15K9.32 mi3.11 mi9022+1847594+1287594+1288693(Top 31%)7364(Top 46%)7364(Top 309%)
20K12.43 mi3.11 mi8774+2487424+1707424+1708275(Top 29%)7029(Top 44%)7029(Top 295%)
Half13.11 mi0.68 mi8715+597384+407384+408123(Top 29%)6962(Top 43%)6962(Top 292%)
25K15.53 mi2.42 mi8421+2947189+1957189+1957341(Top 26%)6343(Top 39%)6343(Top 266%)
30K18.64 mi3.11 mi7996+4256866+3236866+3236612(Top 23%)5717(Top 35%)5717(Top 240%)
20M20.00 mi1.36 mi7811+1856723+1436723+1436205(Top 22%)5336(Top 33%)5336(Top 224%)
21M21.00 mi1.00 mi7602+2096552+1716552+1715481(Top 19%)4727(Top 29%)4727(Top 198%)
35K21.75 mi0.75 mi7485+1176449+1036449+1035787(Top 20%)4923(Top 31%)4923(Top 206%)
23M23.00 mi1.25 mi7226+2596245+2046245+2044470(Top 16%)3937(Top 24%)3937(Top 165%)
24M24.00 mi1.00 mi7045+1816094+1516094+1514113(Top 14%)3630(Top 23%)3630(Top 152%)
40K24.85 mi0.85 mi6859+1865945+1495945+1493792(Top 13%)3337(Top 21%)3337(Top 140%)
25.2M25.20 mi0.35 mi6777+825876+695876+694292(Top 15%)3648(Top 23%)3648(Top 153%)
Finish26.22 mi1.02 mi6550+2275688+1885688+1883125(Top 11%)2780(Top 17%)2780(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8693

Males

7364

M45-49

7364

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9370

Males

7800

M45-49

7800

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8693

Males

7364

M45-49

7364

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8275

Males

7029

M45-49

7029

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8123

Males

6962

M45-49

6962

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7341

Males

6343

M45-49

6343

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6612

Males

5717

M45-49

5717

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

6205

Males

5336

M45-49

5336

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5481

Males

4727

M45-49

4727

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5787

Males

4923

M45-49

4923

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4470

Males

3937

M45-49

3937

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

4113

Males

3630

M45-49

3630

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3792

Males

3337

M45-49

3337

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4292

Males

3648

M45-49

3648

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3125

Males

2780

M45-49

2780

Passing Analysis

Category:
Athletes Passed
3052
Passed By
505
Net Change
+2547
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9097
5K → 10K180289-109#9097#9206
10K → 15K26682+184#9206#9022
15K → 20K29749+248#9022#8774
20K → Half656+59#8774#8715
Half → 25K31420+294#8715#8421
25K → 30K43914+425#8421#7996
30K → 20M19813+185#7996#7811
20M → 21M22112+209#7811#7602
21M → 35K1269+117#7602#7485
35K → 23M2601+259#7485#7226
23M → 24M1843+181#7226#7045
24M → 40K1893+186#7045#6859
40K → 25.2M842+82#6859#6777
25.2M → Finish2292+227#6777#6550
TOTALS3052505+2547
📊

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