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BOSTON MARATHON 2025

Scott Konzem

Bib: 9348•M

NC

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 (M40-44)
#0 / 2247
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:33
Rank: #7322
Start → 5K
21:33 | 6:56/mi
10K· 6.21 mi
43:00
Rank: #7293 (+29)
5K → 10K
21:27 | 6:54/mi
15K· 9.32 mi
1:04:20
Rank: #7089 (+204)
10K → 15K
21:20 | 6:52/mi
20K· 12.43 mi
1:25:44
Rank: #6803 (+286)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:30:28
Rank: #6833 (-30)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:47:10
Rank: #6553 (+280)
Half → 25K
16:42 | 6:53/mi
30K· 18.64 mi
2:09:31
Rank: #6306 (+247)
25K → 30K
22:21 | 7:12/mi
20M
2:19:20
Rank: #6180 (+126)
30K → 20M
9:49 | 7:13/mi
21M
2:27:02
Rank: #6107 (+73)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:32:15
Rank: #6040 (+67)
21M → 35K
5:13 | 6:58/mi
23M
2:41:12
Rank: #5862 (+178)
35K → 23M
8:57 | 7:09/mi
24M
2:48:43
Rank: #5877 (-15)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
2:55:26
Rank: #5938 (-61)
24M → 40K
6:43 | 7:51/mi
25.2M
2:58:28
Rank: #5964 (-26)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:06:45
Rank: #6182 (-218)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:28
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:36:17
Pace7:21 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0721:336:5621:33
6:56
-
10K
6.21 mi11:08:3443:006:5521:27
6:54
-0:02
15K
9.32 mi11:29:541:04:206:5421:20
6:52
-0:02
20K
12.43 mi11:51:181:25:446:5421:24
6:53
+0:01
Half
13.11 mi11:56:021:30:286:544:44
6:56
+0:03
25K
15.53 mi12:12:441:47:106:5416:42
6:53
-0:03
30K
18.64 mi12:35:052:09:316:5722:21
7:12
+0:19
20M
20.00 mi12:44:542:19:206:589:49
7:13
+0:01
21M
21.00 mi12:52:362:27:027:007:42
7:42
+0:29
35K
21.75 mi12:57:492:32:157:005:13
6:58
-0:44
23M
23.00 mi13:06:462:41:127:018:57
7:09
+0:11
24M
24.00 mi13:14:172:48:437:027:31
7:31
+0:22
40K
24.85 mi13:21:002:55:267:036:43
7:51
+0:20
25.2M
25.20 mi13:24:022:58:287:053:02
8:48
+0:57
Finish
26.22 mi13:32:193:06:457:088:17
8:08
-0:40

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

6:52 /mi

Average Pace

7:08 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:20

11% of race

Time at Steady Pace

2:12:10

71% of race

Time at Slower Pace

33:15

18% of race

Average Pace: 7:07 /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 mi10:47:0721:336:5621:33
6:56
#7322
10K
6.21 mi11:08:3443:006:5521:27
6:54
#7293
15K
9.32 mi11:29:541:04:206:5421:20
6:52
#7089
20K
12.43 mi11:51:181:25:446:5421:24
6:53
#6803
Half
13.11 mi11:56:021:30:286:544:44
6:56
#6833
25K
15.53 mi12:12:441:47:106:5416:42
6:53
#6553
30K
18.64 mi12:35:052:09:316:5722:21
7:12
#6306
20M
20.00 mi12:44:542:19:206:589:49
7:13
#6180
21M
21.00 mi12:52:362:27:027:007:42
7:42
#6107
35K
21.75 mi12:57:492:32:157:005:13
6:58
#6040
23M
23.00 mi13:06:462:41:127:018:57
7:09
#5862
24M
24.00 mi13:14:172:48:437:027:31
7:31
#5877
40K
24.85 mi13:21:002:55:267:036:43
7:51
#5938
25.2M
25.20 mi13:24:022:58:287:053:02
8:48
#5964
Finish
26.22 mi13:32:193:06:457:088:17
8:08
#6182
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7322653265326703(Top 24%)6024(Top 37%)6024(Top 268%)
10K6.21 mi3.10 mi7293+296509+236509+237245(Top 26%)6467(Top 40%)6467(Top 288%)
15K9.32 mi3.11 mi7089+2046351+1586351+1586703(Top 24%)6024(Top 37%)6024(Top 268%)
20K12.43 mi3.11 mi6803+2866131+2206131+2206092(Top 21%)5505(Top 34%)5505(Top 245%)
Half13.11 mi0.68 mi6833-306150-196150-197099(Top 25%)6276(Top 39%)6276(Top 279%)
25K15.53 mi2.42 mi6553+2805908+2425908+2425558(Top 20%)5035(Top 31%)5035(Top 224%)
30K18.64 mi3.11 mi6306+2475676+2325676+2325853(Top 21%)5205(Top 32%)5205(Top 232%)
20M20.00 mi1.36 mi6180+1265559+1175559+1175320(Top 19%)4717(Top 29%)4717(Top 210%)
21M21.00 mi1.00 mi6107+735487+725487+725616(Top 20%)4809(Top 30%)4809(Top 214%)
35K21.75 mi0.75 mi6040+675422+655422+655160(Top 18%)4492(Top 28%)4492(Top 200%)
23M23.00 mi1.25 mi5862+1785274+1485274+1484582(Top 16%)4014(Top 25%)4014(Top 179%)
24M24.00 mi1.00 mi5877-155268+65268+67772(Top 27%)5966(Top 37%)5966(Top 266%)
40K24.85 mi0.85 mi5938-615303-355303-359122(Top 32%)6569(Top 41%)6569(Top 292%)
25.2M25.20 mi0.35 mi5964-265313-105313-1010456(Top 37%)7148(Top 44%)7148(Top 318%)
Finish26.22 mi1.02 mi6182-2185447-1345447-13413748(Top 48%)8872(Top 55%)8872(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6703

Males

6024

M40-44

6024

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7245

Males

6467

M40-44

6467

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6703

Males

6024

M40-44

6024

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6092

Males

5505

M40-44

5505

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7099

Males

6276

M40-44

6276

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5558

Males

5035

M40-44

5035

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5853

Males

5205

M40-44

5205

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5320

Males

4717

M40-44

4717

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5616

Males

4809

M40-44

4809

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5160

Males

4492

M40-44

4492

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4582

Males

4014

M40-44

4014

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7772

Males

5966

M40-44

5966

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9122

Males

6569

M40-44

6569

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10456

Males

7148

M40-44

7148

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13748

Males

8872

M40-44

8872

Passing Analysis

Category:
Athletes Passed
2037
Passed By
897
Net Change
+1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7322
5K → 10K214185+29#7322#7293
10K → 15K25551+204#7293#7089
15K → 20K31529+286#7089#6803
20K → Half1343-30#6803#6833
Half → 25K29212+280#6833#6553
25K → 30K30558+247#6553#6306
30K → 20M15226+126#6306#6180
20M → 21M10330+73#6180#6107
21M → 35K7710+67#6107#6040
35K → 23M1835+178#6040#5862
23M → 24M5671-15#5862#5877
24M → 40K3495-61#5877#5938
40K → 25.2M1945-26#5938#5964
25.2M → Finish19237-218#5964#6182
TOTALS2037897+1140
📊

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