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BOSTON MARATHON 2025

Ian King

Bib: 5952•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M50-54)
#0 / 1996
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:29
Rank: #4535
Start → 5K
20:29 | 6:36/mi
10K· 6.21 mi
41:01
Rank: #4507 (+28)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:42
Rank: #4539 (-32)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:22:59
Rank: #4798 (-259)
15K → 20K
21:17 | 6:51/mi
Half· 13.11 mi
1:27:44
Rank: #4935 (-137)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:45:18
Rank: #5518 (-583)
Half → 25K
17:34 | 7:15/mi
30K· 18.64 mi
2:07:48
Rank: #5636 (-118)
25K → 30K
22:30 | 7:15/mi
20M
2:18:13
Rank: #5807 (-171)
30K → 20M
10:25 | 7:40/mi
21M
2:26:21
Rank: #5865 (-58)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:32:00
Rank: #5960 (-95)
21M → 35K
5:39 | 7:33/mi
23M
2:41:44
Rank: #5989 (-29)
35K → 23M
9:44 | 7:46/mi
24M
2:49:30
Rank: #6083 (-94)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
2:56:12
Rank: #6121 (-38)
24M → 40K
6:42 | 7:50/mi
25.2M
2:59:10
Rank: #6142 (-21)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:06:50
Rank: #6202 (-60)
25.2M → Finish
7:40 | 7:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:44
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:39:06
Pace7:34 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0920:296:3620:29
6:36
-
10K
6.21 mi10:45:4141:016:3620:32
6:37
+0:01
15K
9.32 mi11:06:221:01:426:3720:41
6:39
+0:02
20K
12.43 mi11:27:391:22:596:4121:17
6:51
+0:12
Half
13.11 mi11:32:241:27:446:424:45
6:58
+0:07
25K
15.53 mi11:49:581:45:186:4717:34
7:15
+0:17
30K
18.64 mi12:12:282:07:486:5122:30
7:15
0:00
20M
20.00 mi12:22:532:18:136:5510:25
7:40
+0:25
21M
21.00 mi12:31:012:26:216:588:08
8:08
+0:28
35K
21.75 mi12:36:402:32:006:595:39
7:33
-0:35
23M
23.00 mi12:46:242:41:447:029:44
7:46
+0:13
24M
24.00 mi12:54:102:49:307:047:46
7:46
0:00
40K
24.85 mi13:00:522:56:127:056:42
7:50
+0:04
25.2M
25.20 mi13:03:502:59:107:072:58
8:36
+0:46
Finish
26.22 mi13:11:303:06:507:087:40
7:31
-1:05

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

6:36 /mi

Average Pace

7:08 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:44

47% of race

Time at Steady Pace

1:21:18

44% of race

Time at Slower Pace

17:48

10% of race

Average Pace: 7:08 /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 mi10:25:0920:296:3620:29
6:36
#4535
10K
6.21 mi10:45:4141:016:3620:32
6:37
#4507
15K
9.32 mi11:06:221:01:426:3720:41
6:39
#4539
20K
12.43 mi11:27:391:22:596:4121:17
6:51
#4798
Half
13.11 mi11:32:241:27:446:424:45
6:58
#4935
25K
15.53 mi11:49:581:45:186:4717:34
7:15
#5518
30K
18.64 mi12:12:282:07:486:5122:30
7:15
#5636
20M
20.00 mi12:22:532:18:136:5510:25
7:40
#5807
21M
21.00 mi12:31:012:26:216:588:08
8:08
#5865
35K
21.75 mi12:36:402:32:006:595:39
7:33
#5960
23M
23.00 mi12:46:242:41:447:029:44
7:46
#5989
24M
24.00 mi12:54:102:49:307:047:46
7:46
#6083
40K
24.85 mi13:00:522:56:127:056:42
7:50
#6121
25.2M
25.20 mi13:03:502:59:107:072:58
8:36
#6142
Finish
26.22 mi13:11:303:06:507:087:40
7:31
#6202
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4535426142614711(Top 17%)4404(Top 27%)4404(Top 221%)
10K6.21 mi3.10 mi4507+284235+264235+264539(Top 16%)4253(Top 26%)4253(Top 213%)
15K9.32 mi3.11 mi4539-324262-274262-274711(Top 17%)4404(Top 27%)4404(Top 221%)
20K12.43 mi3.11 mi4798-2594475-2134475-2135776(Top 20%)5258(Top 33%)5258(Top 263%)
Half13.11 mi0.68 mi4935-1374597-1224597-1227236(Top 25%)6378(Top 40%)6378(Top 320%)
25K15.53 mi2.42 mi5518-5835071-4745071-4747924(Top 28%)6710(Top 42%)6710(Top 336%)
30K18.64 mi3.11 mi5636-1185150-795150-796138(Top 22%)5411(Top 34%)5411(Top 271%)
20M20.00 mi1.36 mi5807-1715273-1235273-1238092(Top 28%)6490(Top 40%)6490(Top 325%)
21M21.00 mi1.00 mi5865-585303-305303-308121(Top 29%)6314(Top 39%)6314(Top 316%)
35K21.75 mi0.75 mi5960-955368-655368-658938(Top 31%)6800(Top 42%)6800(Top 341%)
23M23.00 mi1.25 mi5989-295372-45372-48366(Top 29%)6362(Top 40%)6362(Top 319%)
24M24.00 mi1.00 mi6083-945431-595431-599513(Top 33%)6905(Top 43%)6905(Top 346%)
40K24.85 mi0.85 mi6121-385439-85439-88965(Top 32%)6489(Top 40%)6489(Top 325%)
25.2M25.20 mi0.35 mi6142-215443-45443-49308(Top 33%)6560(Top 41%)6560(Top 329%)
Finish26.22 mi1.02 mi6202-605459-165459-169307(Top 33%)6593(Top 41%)6593(Top 330%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4711

Males

4404

M50-54

4404

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4539

Males

4253

M50-54

4253

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4711

Males

4404

M50-54

4404

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5776

Males

5258

M50-54

5258

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7236

Males

6378

M50-54

6378

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7924

Males

6710

M50-54

6710

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6138

Males

5411

M50-54

5411

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

8092

Males

6490

M50-54

6490

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8121

Males

6314

M50-54

6314

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8938

Males

6800

M50-54

6800

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8366

Males

6362

M50-54

6362

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9513

Males

6905

M50-54

6905

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8965

Males

6489

M50-54

6489

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9308

Males

6560

M50-54

6560

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9307

Males

6593

M50-54

6593

Passing Analysis

Category:
Athletes Passed
804
Passed By
2471
Net Change
-1667
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4535
5K → 10K177149+28#4535#4507
10K → 15K85117-32#4507#4539
15K → 20K66325-259#4539#4798
20K → Half3140-137#4798#4935
Half → 25K24607-583#4935#5518
25K → 30K146264-118#5518#5636
30K → 20M26197-171#5636#5807
20M → 21M47105-58#5807#5865
21M → 35K22117-95#5865#5960
35K → 23M72101-29#5960#5989
23M → 24M28122-94#5989#6083
24M → 40K4482-38#6083#6121
40K → 25.2M2142-21#6121#6142
25.2M → Finish43103-60#6142#6202
TOTALS8042471-1667
📊

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