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BOSTON MARATHON 2025

Tyler Koon

Bib: 4944•M

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Division (M18-39)
#0 / 5642
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:13
Rank: #6538
Start → 5K
21:13 | 6:50/mi
10K· 6.21 mi
42:08
Rank: #6095 (+443)
5K → 10K
20:55 | 6:44/mi
15K· 9.32 mi
1:03:09
Rank: #5944 (+151)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:24:11
Rank: #5699 (+245)
15K → 20K
21:02 | 6:46/mi
Half· 13.11 mi
1:28:43
Rank: #5644 (+55)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:45:04
Rank: #5389 (+255)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:06:52
Rank: #5210 (+179)
25K → 30K
21:48 | 7:01/mi
20M
2:16:08
Rank: #4977 (+233)
30K → 20M
9:16 | 6:49/mi
21M
2:23:21
Rank: #4820 (+157)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:28:35
Rank: #4821 (-1)
21M → 35K
5:14 | 7:00/mi
23M
2:37:23
Rank: #4726 (+95)
35K → 23M
8:48 | 7:02/mi
24M
2:43:47
Rank: #4500 (+226)
23M → 24M
6:24 | 6:24/mi
40K· 24.85 mi
2:49:30
Rank: #4377 (+123)
24M → 40K
5:43 | 6:41/mi
25.2M
2:52:02
Rank: #4326 (+51)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:58:36
Rank: #4217 (+109)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:43
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:29:53
Pace6:51 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5721:136:5021:13
6:50
-
10K
6.21 mi10:46:5242:086:4720:55
6:44
-0:06
15K
9.32 mi11:07:531:03:096:4721:01
6:46
+0:02
20K
12.43 mi11:28:551:24:116:4621:02
6:46
0:00
Half
13.11 mi11:33:271:28:436:464:32
6:39
-0:07
25K
15.53 mi11:49:481:45:046:4616:21
6:45
+0:06
30K
18.64 mi12:11:362:06:526:4821:48
7:01
+0:16
20M
20.00 mi12:20:522:16:086:489:16
6:49
-0:12
21M
21.00 mi12:28:052:23:216:507:13
7:13
+0:24
35K
21.75 mi12:33:192:28:356:505:14
7:00
-0:13
23M
23.00 mi12:42:072:37:236:518:48
7:02
+0:02
24M
24.00 mi12:48:312:43:476:496:24
6:24
-0:38
40K
24.85 mi12:54:142:49:306:495:43
6:41
+0:17
25.2M
25.20 mi12:56:462:52:026:502:32
7:21
+0:40
Finish
26.22 mi13:03:202:58:366:496:34
6:27
-0:54

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

6:24 /mi

Average Pace

6:49 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:51

95% of race

Time at Steady Pace

9:45

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:25:5721:136:5021:13
6:50
#6538
10K
6.21 mi10:46:5242:086:4720:55
6:44
#6095
15K
9.32 mi11:07:531:03:096:4721:01
6:46
#5944
20K
12.43 mi11:28:551:24:116:4621:02
6:46
#5699
Half
13.11 mi11:33:271:28:436:464:32
6:39
#5644
25K
15.53 mi11:49:481:45:046:4616:21
6:45
#5389
30K
18.64 mi12:11:362:06:526:4821:48
7:01
#5210
20M
20.00 mi12:20:522:16:086:489:16
6:49
#4977
21M
21.00 mi12:28:052:23:216:507:13
7:13
#4820
35K
21.75 mi12:33:192:28:356:505:14
7:00
#4821
23M
23.00 mi12:42:072:37:236:518:48
7:02
#4726
24M
24.00 mi12:48:312:43:476:496:24
6:24
#4500
40K
24.85 mi12:54:142:49:306:495:43
6:41
#4377
25.2M
25.20 mi12:56:462:52:026:502:32
7:21
#4326
Finish
26.22 mi13:03:202:58:366:496:34
6:27
#4217
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6538594559455714(Top 20%)5209(Top 32%)5209(Top 92%)
10K6.21 mi3.10 mi6095+4435587+3585587+3585633(Top 20%)5173(Top 32%)5173(Top 92%)
15K9.32 mi3.11 mi5944+1515449+1385449+1385714(Top 20%)5209(Top 32%)5209(Top 92%)
20K12.43 mi3.11 mi5699+2455231+2185231+2184989(Top 18%)4605(Top 29%)4605(Top 82%)
Half13.11 mi0.68 mi5644+555183+485183+484743(Top 17%)4403(Top 27%)4403(Top 78%)
25K15.53 mi2.42 mi5389+2554961+2224961+2224423(Top 16%)4095(Top 25%)4095(Top 73%)
30K18.64 mi3.11 mi5210+1794793+1684793+1684779(Top 17%)4354(Top 27%)4354(Top 77%)
20M20.00 mi1.36 mi4977+2334587+2064587+2063041(Top 11%)2831(Top 18%)2831(Top 50%)
21M21.00 mi1.00 mi4820+1574452+1354452+1353205(Top 11%)2953(Top 18%)2953(Top 52%)
35K21.75 mi0.75 mi4821-14445+74445+75273(Top 19%)4555(Top 28%)4555(Top 81%)
23M23.00 mi1.25 mi4726+954348+974348+973918(Top 14%)3507(Top 22%)3507(Top 62%)
24M24.00 mi1.00 mi4500+2264149+1994149+1991663(Top 6%)1550(Top 10%)1550(Top 27%)
40K24.85 mi0.85 mi4377+1234032+1174032+1172307(Top 8%)2112(Top 13%)2112(Top 37%)
25.2M25.20 mi0.35 mi4326+513987+453987+452735(Top 10%)2437(Top 15%)2437(Top 43%)
Finish26.22 mi1.02 mi4217+1093884+1033884+1032525(Top 9%)2294(Top 14%)2294(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5714

Males

5209

M18-39

5209

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5633

Males

5173

M18-39

5173

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5714

Males

5209

M18-39

5209

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4989

Males

4605

M18-39

4605

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4743

Males

4403

M18-39

4403

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4423

Males

4095

M18-39

4095

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4779

Males

4354

M18-39

4354

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3041

Males

2831

M18-39

2831

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3205

Males

2953

M18-39

2953

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5273

Males

4555

M18-39

4555

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3918

Males

3507

M18-39

3507

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1663

Males

1550

M18-39

1550

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2307

Males

2112

M18-39

2112

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2735

Males

2437

M18-39

2437

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2525

Males

2294

M18-39

2294

Passing Analysis

Category:
Athletes Passed
2656
Passed By
335
Net Change
+2321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6538
5K → 10K48946+443#6538#6095
10K → 15K21362+151#6095#5944
15K → 20K27530+245#5944#5699
20K → Half572+55#5699#5644
Half → 25K26712+255#5644#5389
25K → 30K24768+179#5389#5210
30K → 20M2374+233#5210#4977
20M → 21M1669+157#4977#4820
21M → 35K5152-1#4820#4821
35K → 23M13338+95#4821#4726
23M → 24M2260+226#4726#4500
24M → 40K1241+123#4500#4377
40K → 25.2M532+51#4377#4326
25.2M → Finish1189+109#4326#4217
TOTALS2656335+2321
📊

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