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BOSTON MARATHON 2025

Kenneth Sprague

Bib: 3218•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:53
Rank: #3119
Start → 5K
19:53 | 6:24/mi
10K· 6.21 mi
39:20
Rank: #2624 (+495)
5K → 10K
19:27 | 6:16/mi
15K· 9.32 mi
58:32
Rank: #2258 (+366)
10K → 15K
19:12 | 6:11/mi
20K· 12.43 mi
1:18:12
Rank: #2220 (+38)
15K → 20K
19:40 | 6:20/mi
Half· 13.11 mi
1:22:23
Rank: #2180 (+40)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:37:31
Rank: #2078 (+102)
Half → 25K
15:08 | 6:14/mi
30K· 18.64 mi
1:57:34
Rank: #1975 (+103)
25K → 30K
20:03 | 6:27/mi
20M
2:06:34
Rank: #1964 (+11)
30K → 20M
9:00 | 6:37/mi
21M
2:13:11
Rank: #1862 (+102)
20M → 21M
6:37 | 6:37/mi
35K· 21.75 mi
2:17:54
Rank: #1830 (+32)
21M → 35K
4:43 | 6:18/mi
23M
2:25:59
Rank: #1765 (+65)
35K → 23M
8:05 | 6:28/mi
24M
2:32:27
Rank: #1742 (+23)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:37:59
Rank: #1712 (+30)
24M → 40K
5:32 | 6:28/mi
25.2M
2:40:23
Rank: #1690 (+22)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:46:38
Rank: #1641 (+49)
25.2M → Finish
6:15 | 6:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:23
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:24:15
Pace6:26 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3619:536:2419:53
6:24
-
10K
6.21 mi10:41:0339:206:2019:27
6:16
-0:08
15K
9.32 mi11:00:1558:326:1719:12
6:11
-0:05
20K
12.43 mi11:19:551:18:126:1819:40
6:20
+0:09
Half
13.11 mi11:24:061:22:236:174:11
6:08
-0:12
25K
15.53 mi11:39:141:37:316:1715:08
6:14
+0:06
30K
18.64 mi11:59:171:57:346:1820:03
6:27
+0:13
20M
20.00 mi12:08:172:06:346:209:00
6:37
+0:10
21M
21.00 mi12:14:542:13:116:216:37
6:37
0:00
35K
21.75 mi12:19:372:17:546:204:43
6:18
-0:19
23M
23.00 mi12:27:422:25:596:218:05
6:28
+0:10
24M
24.00 mi12:34:102:32:276:216:28
6:28
0:00
40K
24.85 mi12:39:422:37:596:215:32
6:28
0:00
25.2M
25.20 mi12:42:062:40:236:222:24
6:58
+0:30
Finish
26.22 mi12:48:212:46:386:226:15
6:08
-0:50

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

6:08 /mi

Average Pace

6:22 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:14

99% of race

Time at Steady Pace

2:24

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:21 /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 mi10:21:3619:536:2419:53
6:24
#3119
10K
6.21 mi10:41:0339:206:2019:27
6:16
#2624
15K
9.32 mi11:00:1558:326:1719:12
6:11
#2258
20K
12.43 mi11:19:551:18:126:1819:40
6:20
#2220
Half
13.11 mi11:24:061:22:236:174:11
6:08
#2180
25K
15.53 mi11:39:141:37:316:1715:08
6:14
#2078
30K
18.64 mi11:59:171:57:346:1820:03
6:27
#1975
20M
20.00 mi12:08:172:06:346:209:00
6:37
#1964
21M
21.00 mi12:14:542:13:116:216:37
6:37
#1862
35K
21.75 mi12:19:372:17:546:204:43
6:18
#1830
23M
23.00 mi12:27:422:25:596:218:05
6:28
#1765
24M
24.00 mi12:34:102:32:276:216:28
6:28
#1742
40K
24.85 mi12:39:422:37:596:215:32
6:28
#1712
25.2M
25.20 mi12:42:062:40:236:222:24
6:58
#1690
Finish
26.22 mi12:48:212:46:386:226:15
6:08
#1641
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3119296329631757(Top 6%)1670(Top 10%)1670(Top 30%)
10K6.21 mi3.10 mi2624+4952499+4642499+4642190(Top 8%)2093(Top 13%)2093(Top 37%)
15K9.32 mi3.11 mi2258+3662155+3442155+3441757(Top 6%)1670(Top 10%)1670(Top 30%)
20K12.43 mi3.11 mi2220+382121+342121+342160(Top 8%)2060(Top 13%)2060(Top 37%)
Half13.11 mi0.68 mi2180+402080+412080+411681(Top 6%)1600(Top 10%)1600(Top 28%)
25K15.53 mi2.42 mi2078+1021981+991981+991625(Top 6%)1545(Top 10%)1545(Top 27%)
30K18.64 mi3.11 mi1975+1031881+1001881+1001789(Top 6%)1700(Top 11%)1700(Top 30%)
20M20.00 mi1.36 mi1964+111869+121869+122089(Top 7%)1976(Top 12%)1976(Top 35%)
21M21.00 mi1.00 mi1862+1021770+991770+99990(Top 3%)935(Top 6%)935(Top 17%)
35K21.75 mi0.75 mi1830+321738+321738+321647(Top 6%)1547(Top 10%)1547(Top 27%)
23M23.00 mi1.25 mi1765+651674+641674+641338(Top 5%)1257(Top 8%)1257(Top 22%)
24M24.00 mi1.00 mi1742+231650+241650+241890(Top 7%)1753(Top 11%)1753(Top 31%)
40K24.85 mi0.85 mi1712+301621+291621+291523(Top 5%)1410(Top 9%)1410(Top 25%)
25.2M25.20 mi0.35 mi1690+221601+201601+201385(Top 5%)1272(Top 8%)1272(Top 23%)
Finish26.22 mi1.02 mi1641+491552+491552+491316(Top 5%)1229(Top 8%)1229(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1757

Males

1670

M18-39

1670

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2190

Males

2093

M18-39

2093

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1757

Males

1670

M18-39

1670

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2160

Males

2060

M18-39

2060

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1681

Males

1600

M18-39

1600

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1625

Males

1545

M18-39

1545

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1789

Males

1700

M18-39

1700

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2089

Males

1976

M18-39

1976

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

990

Males

935

M18-39

935

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1647

Males

1547

M18-39

1547

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1338

Males

1257

M18-39

1257

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1890

Males

1753

M18-39

1753

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1523

Males

1410

M18-39

1410

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1385

Males

1272

M18-39

1272

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1316

Males

1229

M18-39

1229

Passing Analysis

Category:
Athletes Passed
1664
Passed By
186
Net Change
+1478
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3119
5K → 10K50611+495#3119#2624
10K → 15K3660+366#2624#2258
15K → 20K8951+38#2258#2220
20K → Half422+40#2220#2180
Half → 25K1097+102#2180#2078
25K → 30K12421+103#2078#1975
30K → 20M3625+11#1975#1964
20M → 21M1042+102#1964#1862
21M → 35K4311+32#1862#1830
35K → 23M716+65#1830#1765
23M → 24M4522+23#1765#1742
24M → 40K4616+30#1742#1712
40K → 25.2M275+22#1712#1690
25.2M → Finish567+49#1690#1641
TOTALS1664186+1478
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing