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BOSTON MARATHON 2025

Zach Jowers

Bib: 516•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 0.8%
Gender (Male)
#0 / 16105
Top 1%
Division (M18-39)
#0 / 5642
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:35
Rank: #377
Start → 5K
17:35 | 5:40/mi
10K· 6.21 mi
35:10
Rank: #364 (+13)
5K → 10K
17:35 | 5:40/mi
15K· 9.32 mi
52:40
Rank: #336 (+28)
10K → 15K
17:30 | 5:38/mi
20K· 12.43 mi
1:10:08
Rank: #302 (+34)
15K → 20K
17:28 | 5:37/mi
Half· 13.11 mi
1:13:57
Rank: #298 (+4)
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:27:38
Rank: #282 (+16)
Half → 25K
13:41 | 5:39/mi
30K· 18.64 mi
1:45:20
Rank: #240 (+42)
25K → 30K
17:42 | 5:42/mi
20M
1:53:12
Rank: #224 (+16)
30K → 20M
7:52 | 5:47/mi
21M
1:59:13
Rank: #210 (+14)
20M → 21M
6:01 | 6:01/mi
35K· 21.75 mi
2:03:26
Rank: #210
21M → 35K
4:13 | 5:38/mi
23M
2:11:01
Rank: #211 (-1)
35K → 23M
7:35 | 6:03/mi
24M
2:16:59
Rank: #212 (-1)
23M → 24M
5:58 | 5:58/mi
40K· 24.85 mi
2:22:13
Rank: #219 (-7)
24M → 40K
5:14 | 6:07/mi
25.2M
2:24:47
Rank: #232 (-13)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:30:40
Rank: #234 (-2)
25.2M → Finish
5:53 | 5:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:13:57
Pace5:38 /mi
2nd Half
Distance13.11 mi
Time1:16:43
Pace5:51 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4317:355:4017:35
5:40
-
10K
6.21 mi10:35:1835:105:4017:35
5:40
0:00
15K
9.32 mi10:52:4852:405:3917:30
5:38
-0:02
20K
12.43 mi11:10:161:10:085:3917:28
5:37
-0:01
Half
13.11 mi11:14:051:13:575:383:49
5:36
-0:01
25K
15.53 mi11:27:461:27:385:3813:41
5:39
+0:03
30K
18.64 mi11:45:281:45:205:3917:42
5:42
+0:03
20M
20.00 mi11:53:201:53:125:407:52
5:47
+0:05
21M
21.00 mi11:59:211:59:135:416:01
6:01
+0:14
35K
21.75 mi12:03:342:03:265:414:13
5:38
-0:23
23M
23.00 mi12:11:092:11:015:427:35
6:03
+0:25
24M
24.00 mi12:17:072:16:595:425:58
5:58
-0:05
40K
24.85 mi12:22:212:22:135:435:14
6:07
+0:09
25.2M
25.20 mi12:24:552:24:475:452:34
7:27
+1:20
Finish
26.22 mi12:30:482:30:405:455:53
5:46
-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

5:36 /mi

Average Pace

5:45 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:03:18

82% of race

Time at Slower Pace

27:22

18% of race

Average Pace: 5:45 /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 mi10:17:4317:355:4017:35
5:40
#377
10K
6.21 mi10:35:1835:105:4017:35
5:40
#364
15K
9.32 mi10:52:4852:405:3917:30
5:38
#336
20K
12.43 mi11:10:161:10:085:3917:28
5:37
#302
Half
13.11 mi11:14:051:13:575:383:49
5:36
#298
25K
15.53 mi11:27:461:27:385:3813:41
5:39
#282
30K
18.64 mi11:45:281:45:205:3917:42
5:42
#240
20M
20.00 mi11:53:201:53:125:407:52
5:47
#224
21M
21.00 mi11:59:211:59:135:416:01
6:01
#210
35K
21.75 mi12:03:342:03:265:414:13
5:38
#210
23M
23.00 mi12:11:092:11:015:427:35
6:03
#211
24M
24.00 mi12:17:072:16:595:425:58
5:58
#212
40K
24.85 mi12:22:212:22:135:435:14
6:07
#219
25.2M
25.20 mi12:24:552:24:475:452:34
7:27
#232
Finish
26.22 mi12:30:482:30:405:455:53
5:46
#234
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi377344344283(Top 1.0%)255(Top 2%)255(Top 5%)
10K6.21 mi3.10 mi364+13333+11333+11369(Top 1%)339(Top 2%)339(Top 6%)
15K9.32 mi3.11 mi336+28307+26307+26283(Top 1.0%)255(Top 2%)255(Top 5%)
20K12.43 mi3.11 mi302+34273+34273+34218(Top 0.8%)194(Top 1%)194(Top 3%)
Half13.11 mi0.68 mi298+4269+4269+4287(Top 1%)262(Top 2%)262(Top 5%)
25K15.53 mi2.42 mi282+16254+15254+15232(Top 0.8%)207(Top 1%)207(Top 4%)
30K18.64 mi3.11 mi240+42214+40214+40171(Top 0.6%)149(Top 0.9%)149(Top 3%)
20M20.00 mi1.36 mi224+16201+13201+13174(Top 0.6%)158(Top 1.0%)158(Top 3%)
21M21.00 mi1.00 mi210+14187+14187+14128(Top 0.5%)120(Top 0.7%)120(Top 2%)
35K21.75 mi0.75 mi210188-1188-1205(Top 0.7%)186(Top 1%)186(Top 3%)
23M23.00 mi1.25 mi211-1189-1189-1412(Top 1%)386(Top 2%)386(Top 7%)
24M24.00 mi1.00 mi212-1190-1190-1505(Top 2%)469(Top 3%)469(Top 8%)
40K24.85 mi0.85 mi219-7197-7197-7565(Top 2%)527(Top 3%)527(Top 9%)
25.2M25.20 mi0.35 mi232-13210-13210-133047(Top 11%)2688(Top 17%)2688(Top 48%)
Finish26.22 mi1.02 mi234-2212-2212-2457(Top 2%)428(Top 3%)428(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1.0%
×21stories
+97ft-345ft

Overall

283

Males

255

M18-39

255

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

369

Males

339

M18-39

339

10K→15K

6.2 - 9.3 mi

Top 1.0%
×3stories
+67ft-78ft

Overall

283

Males

255

M18-39

255

15K→20K

9.3 - 12.4 mi

Top 0.8%
×5stories
+106ft-86ft

Overall

218

Males

194

M18-39

194

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

287

Males

262

M18-39

262

Half→25K

13.1 - 15.5 mi

Top 0.8%
×4stories
+66ft-88ft

Overall

232

Males

207

M18-39

207

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9stories
+181ft-148ft

Overall

171

Males

149

M18-39

149

30K→20M

18.6 - 20.0 mi

Top 0.6%
×5stories
+64ft-50ft

Overall

174

Males

158

M18-39

158

20M→21M

20.0 - 21.0 mi

Top 0.5%
×8stories
+106ft-24ft

Overall

128

Males

120

M18-39

120

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7stories
+17ft-86ft

Overall

205

Males

186

M18-39

186

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

412

Males

386

M18-39

386

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

505

Males

469

M18-39

469

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

565

Males

527

M18-39

527

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3047

Males

2688

M18-39

2688

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

457

Males

428

M18-39

428

Passing Analysis

Category:
Athletes Passed
214
Passed By
71
Net Change
+143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#377
5K → 10K2613+13#377#364
10K → 15K313+28#364#336
15K → 20K362+34#336#302
20K → Half51+4#302#298
Half → 25K171+16#298#282
25K → 30K420+42#282#240
30K → 20M171+16#240#224
20M → 21M151+14#224#210
21M → 35K220#210#210
35K → 23M1011-1#210#211
23M → 24M45-1#211#212
24M → 40K411-7#212#219
40K → 25.2M013-13#219#232
25.2M → Finish57-2#232#234
TOTALS21471+143
📊

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