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BOSTON MARATHON 2025

Bjarne Koning

Bib: 19615•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M55-59)
#0 / 1648
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:43
Rank: #10472
Start → 5K
22:43 | 7:19/mi
10K· 6.21 mi
44:33
Rank: #9190 (+1282)
5K → 10K
21:50 | 7:02/mi
15K· 9.32 mi
1:06:31
Rank: #8800 (+390)
10K → 15K
21:58 | 7:04/mi
20K· 12.43 mi
1:29:03
Rank: #8691 (+109)
15K → 20K
22:32 | 7:15/mi
Half· 13.11 mi
1:34:01
Rank: #8718 (-27)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:51:47
Rank: #8643 (+75)
Half → 25K
17:46 | 7:20/mi
30K· 18.64 mi
2:15:38
Rank: #8641 (+2)
25K → 30K
23:51 | 7:41/mi
20M
2:26:27
Rank: #8723 (-82)
30K → 20M
10:49 | 7:58/mi
21M
2:36:03
Rank: #9236 (-513)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
2:41:58
Rank: #9315 (-79)
21M → 35K
5:55 | 7:55/mi
23M
2:52:02
Rank: #9331 (-16)
35K → 23M
10:04 | 8:02/mi
24M
3:00:43
Rank: #9627 (-296)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:08:09
Rank: #9825 (-198)
24M → 40K
7:26 | 8:42/mi
25.2M
3:11:25
Rank: #9905 (-80)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:19:21
Rank: #9948 (-43)
25.2M → Finish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:01
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:45:20
Pace8:02 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1122:437:1922:43
7:19
-
10K
6.21 mi11:36:0144:337:1021:50
7:02
-0:17
15K
9.32 mi11:57:591:06:317:0821:58
7:04
+0:02
20K
12.43 mi12:20:311:29:037:1022:32
7:15
+0:11
Half
13.11 mi12:25:291:34:017:104:58
7:17
+0:02
25K
15.53 mi12:43:151:51:477:1217:46
7:20
+0:03
30K
18.64 mi13:07:062:15:387:1723:51
7:41
+0:21
20M
20.00 mi13:17:552:26:277:1910:49
7:58
+0:17
21M
21.00 mi13:27:312:36:037:269:36
9:36
+1:38
35K
21.75 mi13:33:262:41:587:275:55
7:55
-1:41
23M
23.00 mi13:43:302:52:027:2910:04
8:02
+0:07
24M
24.00 mi13:52:113:00:437:328:41
8:41
+0:39
40K
24.85 mi13:59:373:08:097:347:26
8:42
+0:01
25.2M
25.20 mi14:02:533:11:257:363:16
9:28
+0:46
Finish
26.22 mi14:10:493:19:217:377:56
7:47
-1:41

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

7:02 /mi

Average Pace

7:37 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:47

56% of race

Time at Steady Pace

58:35

29% of race

Time at Slower Pace

28:59

15% of race

Average Pace: 7:36 /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 mi11:14:1122:437:1922:43
7:19
#10472
10K
6.21 mi11:36:0144:337:1021:50
7:02
#9190
15K
9.32 mi11:57:591:06:317:0821:58
7:04
#8800
20K
12.43 mi12:20:311:29:037:1022:32
7:15
#8691
Half
13.11 mi12:25:291:34:017:104:58
7:17
#8718
25K
15.53 mi12:43:151:51:477:1217:46
7:20
#8643
30K
18.64 mi13:07:062:15:387:1723:51
7:41
#8641
20M
20.00 mi13:17:552:26:277:1910:49
7:58
#8723
21M
21.00 mi13:27:312:36:037:269:36
9:36
#9236
35K
21.75 mi13:33:262:41:587:275:55
7:55
#9315
23M
23.00 mi13:43:302:52:027:2910:04
8:02
#9331
24M
24.00 mi13:52:113:00:437:328:41
8:41
#9627
40K
24.85 mi13:59:373:08:097:347:26
8:42
#9825
25.2M
25.20 mi14:02:533:11:257:363:16
9:28
#9905
Finish
26.22 mi14:10:493:19:217:377:56
7:47
#9948
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10472842584258125(Top 29%)7023(Top 44%)7023(Top 426%)
10K6.21 mi3.10 mi9190+12827715+7107715+7108125(Top 29%)7048(Top 44%)7048(Top 428%)
15K9.32 mi3.11 mi8800+3907466+2497466+2498125(Top 29%)7023(Top 44%)7023(Top 426%)
20K12.43 mi3.11 mi8691+1097377+897377+898645(Top 30%)7251(Top 45%)7251(Top 440%)
Half13.11 mi0.68 mi8718-277387-107387-109784(Top 34%)7912(Top 49%)7912(Top 480%)
25K15.53 mi2.42 mi8643+757326+617326+618581(Top 30%)7103(Top 44%)7103(Top 431%)
30K18.64 mi3.11 mi8641+27267+597267+599030(Top 32%)7156(Top 44%)7156(Top 434%)
20M20.00 mi1.36 mi8723-827271-47271-410149(Top 36%)7618(Top 47%)7618(Top 462%)
21M21.00 mi1.00 mi9236-5137533-2627533-26216508(Top 58%)10467(Top 65%)10467(Top 635%)
35K21.75 mi0.75 mi9315-797555-227555-2211583(Top 41%)8118(Top 50%)8118(Top 493%)
23M23.00 mi1.25 mi9331-167524+317524+3110300(Top 36%)7384(Top 46%)7384(Top 448%)
24M24.00 mi1.00 mi9627-2967647-1237647-12315602(Top 55%)9861(Top 61%)9861(Top 598%)
40K24.85 mi0.85 mi9825-1987706-597706-5914542(Top 51%)9231(Top 57%)9231(Top 560%)
25.2M25.20 mi0.35 mi9905-807735-297735-2914354(Top 51%)9083(Top 56%)9083(Top 551%)
Finish26.22 mi1.02 mi9948-437728+77728+711298(Top 40%)7657(Top 48%)7657(Top 465%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8125

Males

7023

M55-59

7023

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8125

Males

7048

M55-59

7048

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8125

Males

7023

M55-59

7023

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8645

Males

7251

M55-59

7251

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9784

Males

7912

M55-59

7912

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8581

Males

7103

M55-59

7103

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9030

Males

7156

M55-59

7156

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10149

Males

7618

M55-59

7618

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16508

Males

10467

M55-59

10467

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

11583

Males

8118

M55-59

8118

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10300

Males

7384

M55-59

7384

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15602

Males

9861

M55-59

9861

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14542

Males

9231

M55-59

9231

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14354

Males

9083

M55-59

9083

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11298

Males

7657

M55-59

7657

Passing Analysis

Category:
Athletes Passed
2718*
Passed By
2193
Net Change
+524
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10472
5K → 10K1297*15+1282#10472#9190
10K → 15K42131+390#9190#8800
15K → 20K225116+109#8800#8691
20K → Half2249-27#8691#8718
Half → 25K176101+75#8718#8643
25K → 30K210208+2#8643#8641
30K → 20M75157-82#8641#8723
20M → 21M16529-513#8723#9236
21M → 35K38117-79#9236#9315
35K → 23M108124-16#9315#9331
23M → 24M26322-296#9331#9627
24M → 40K28225-198#9627#9825
40K → 25.2M1595-80#9825#9905
25.2M → Finish61104-43#9905#9948
TOTALS2718*2193+524

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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