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BOSTON MARATHON 2025

Gary Krenz

Bib: 17086•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 50%
Division (M65-69)
#0 / 639
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:58/mi
24:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:13:04
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:37:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:01:41
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:26:20
↑ 181↓ 1480.2%
20M
7:55/mi
2:37:05
↑ 64↓ 500.2%
21M
8:20/mi
2:45:25
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:51:06
↑ 17↓ 861.7%
23M
8:00/mi
3:01:07
↑ 23↓ 630.6%
24M
7:55/mi
3:09:02
↓ 821.3%
40K· 24.85 mi
9:31/mi
3:17:10
↓ 200.3%
25.2M
10:58/mi
3:20:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:12/mi
3:30:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:38
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:47:42
Pace8:13 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2124:447:5824:44
7:58
-
10K
6.21 mi11:39:3448:577:5324:13
7:48
-0:10
15K
9.32 mi12:03:411:13:047:5024:07
7:46
-0:02
20K
12.43 mi12:27:591:37:227:5024:18
7:49
+0:03
Half
13.11 mi12:33:151:42:387:505:16
7:43
-0:06
25K
15.53 mi12:52:182:01:417:5019:03
7:51
+0:08
30K
18.64 mi13:16:572:26:207:5124:39
7:56
+0:05
20M
20.00 mi13:27:422:37:057:5110:45
7:55
-0:01
21M
21.00 mi13:36:022:45:257:538:20
8:20
+0:25
35K
21.75 mi13:41:432:51:067:525:41
7:36
-0:44
23M
23.00 mi13:51:443:01:077:5210:01
8:00
+0:24
24M
24.00 mi13:59:393:09:027:537:55
7:55
-0:05
40K
24.85 mi14:07:473:17:107:568:08
9:31
+1:36
25.2M
25.20 mi14:11:343:20:577:583:47
10:58
+1:27
Finish
26.22 mi14:20:573:30:208:029:23
9:12
-1:46

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

7:36 /mi

Average Pace

8:02 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:09:02

90% of race

Time at Slower Pace

21:18

10% of race

Average Pace: 8:01 /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 mi11:15:2124:447:5824:44
7:58
#16276
10K
6.21 mi11:39:3448:577:5324:13
7:48
#15455
15K
9.32 mi12:03:411:13:047:5024:07
7:46
#14978
20K
12.43 mi12:27:591:37:227:5024:18
7:49
#14523
Half
13.11 mi12:33:151:42:387:505:16
7:43
#14463
25K
15.53 mi12:52:182:01:417:5019:03
7:51
#14157
30K
18.64 mi13:16:572:26:207:5124:39
7:56
#13476
20M
20.00 mi13:27:422:37:057:5110:45
7:55
#13163
21M
21.00 mi13:36:022:45:257:538:20
8:20
#12913
35K
21.75 mi13:41:432:51:067:525:41
7:36
#12781
23M
23.00 mi13:51:443:01:077:5210:01
8:00
#12559
24M
24.00 mi13:59:393:09:027:537:55
7:55
#12447
40K
24.85 mi14:07:473:17:107:568:08
9:31
#12757
25.2M
25.20 mi14:11:343:20:577:583:47
10:58
#12959
Finish
26.22 mi14:20:573:30:208:029:23
9:12
#13297
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi16276109101091014021(Top 49%)9950(Top 62%)9950(Top 1557%)
10K6.21 mi3.10 mi15455+82110599+31110599+31114733(Top 52%)10306(Top 64%)10306(Top 1613%)
15K9.32 mi3.11 mi14978+47710389+21010389+21014021(Top 49%)9950(Top 62%)9950(Top 1557%)
20K12.43 mi3.11 mi14523+45510177+21210177+21213433(Top 47%)9619(Top 60%)9619(Top 1505%)
Half13.11 mi0.68 mi14463+6010144+3310144+3313500(Top 48%)9688(Top 60%)9688(Top 1516%)
25K15.53 mi2.42 mi14157+3069983+1619983+16112803(Top 45%)9206(Top 57%)9206(Top 1441%)
30K18.64 mi3.11 mi13476+6819635+3489635+34810905(Top 38%)8151(Top 51%)8151(Top 1276%)
20M20.00 mi1.36 mi13163+3139458+1779458+1779820(Top 35%)7450(Top 46%)7450(Top 1166%)
21M21.00 mi1.00 mi12913+2509317+1419317+1419444(Top 33%)7080(Top 44%)7080(Top 1108%)
35K21.75 mi0.75 mi12781+1329238+799238+799326(Top 33%)7032(Top 44%)7032(Top 1100%)
23M23.00 mi1.25 mi12559+2229100+1389100+13810028(Top 35%)7257(Top 45%)7257(Top 1136%)
24M24.00 mi1.00 mi12447+1129018+829018+8210663(Top 38%)7519(Top 47%)7519(Top 1177%)
40K24.85 mi0.85 mi12757-3109131-1139131-11318727(Top 66%)11184(Top 69%)11184(Top 1750%)
25.2M25.20 mi0.35 mi12959-2029207-769207-7620476(Top 72%)12009(Top 75%)12009(Top 1879%)
Finish26.22 mi1.02 mi13297-3389339-1329339-13219957(Top 70%)11778(Top 73%)11778(Top 1843%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

14021

Males

9950

M65-69

9950

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14733

Males

10306

M65-69

10306

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

14021

Males

9950

M65-69

9950

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13433

Males

9619

M65-69

9619

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13500

Males

9688

M65-69

9688

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12803

Males

9206

M65-69

9206

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10905

Males

8151

M65-69

8151

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9820

Males

7450

M65-69

7450

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9444

Males

7080

M65-69

7080

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9326

Males

7032

M65-69

7032

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

10028

Males

7257

M65-69

7257

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10663

Males

7519

M65-69

7519

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18727

Males

11184

M65-69

11184

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20476

Males

12009

M65-69

12009

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19957

Males

11778

M65-69

11778

Passing Analysis

Category:
Athletes Passed
4125
Passed By
1146
Net Change
+2979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16276
5K → 10K89574+821#16276#15455
10K → 15K51336+477#15455#14978
15K → 20K48025+455#14978#14523
20K → Half7313+60#14523#14463
Half → 25K33428+306#14463#14157
25K → 30K6887+681#14157#13476
30K → 20M3218+313#13476#13163
20M → 21M2577+250#13163#12913
21M → 35K1364+132#12913#12781
35K → 23M24119+222#12781#12559
23M → 24M14028+112#12559#12447
24M → 40K27337-310#12447#12757
40K → 25.2M7209-202#12757#12959
25.2M → Finish13351-338#12959#13297
TOTALS41251146+2979
📊

Passing Visuals

Category:
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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