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BOSTON MARATHON 2025

Gregg Jerez

Bib: 3429•M

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Division (M18-39)
#0 / 5642
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:39
Rank: #2592
Start → 5K
19:39 | 6:19/mi
10K· 6.21 mi
39:11
Rank: #2451 (+141)
5K → 10K
19:32 | 6:17/mi
15K· 9.32 mi
58:43
Rank: #2368 (+83)
10K → 15K
19:32 | 6:17/mi
20K· 12.43 mi
1:18:46
Rank: #2477 (-109)
15K → 20K
20:03 | 6:27/mi
Half· 13.11 mi
1:23:06
Rank: #2496 (-19)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:38:37
Rank: #2445 (+51)
Half → 25K
15:31 | 6:24/mi
30K· 18.64 mi
1:59:28
Rank: #2497 (-52)
25K → 30K
20:51 | 6:43/mi
20M
2:09:04
Rank: #2590 (-93)
30K → 20M
9:36 | 7:04/mi
21M
2:16:20
Rank: #2621 (-31)
20M → 21M
7:16 | 7:16/mi
35K· 21.75 mi
2:21:29
Rank: #2677 (-56)
21M → 35K
5:09 | 6:53/mi
23M
2:30:15
Rank: #2699 (-22)
35K → 23M
8:46 | 7:00/mi
24M
2:37:18
Rank: #2749 (-50)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:43:32
Rank: #2802 (-53)
24M → 40K
6:14 | 7:17/mi
25.2M
2:46:09
Rank: #2807 (-5)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:52:55
Rank: #2803 (+4)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:06
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:29:49
Pace6:51 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4119:396:1919:39
6:19
-
10K
6.21 mi10:43:1339:116:1819:32
6:17
-0:02
15K
9.32 mi11:02:4558:436:1819:32
6:17
0:00
20K
12.43 mi11:22:481:18:466:2020:03
6:27
+0:10
Half
13.11 mi11:27:081:23:066:204:20
6:21
-0:06
25K
15.53 mi11:42:391:38:376:2115:31
6:24
+0:03
30K
18.64 mi12:03:301:59:286:2520:51
6:43
+0:19
20M
20.00 mi12:13:062:09:046:279:36
7:04
+0:21
21M
21.00 mi12:20:222:16:206:307:16
7:16
+0:12
35K
21.75 mi12:25:312:21:296:305:09
6:53
-0:23
23M
23.00 mi12:34:172:30:156:328:46
7:00
+0:07
24M
24.00 mi12:41:202:37:186:337:03
7:03
+0:03
40K
24.85 mi12:47:342:43:326:356:14
7:17
+0:14
25.2M
25.20 mi12:50:112:46:096:362:37
7:35
+0:18
Finish
26.22 mi12:56:572:52:556:366:46
6:38
-0:57

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

6:17 /mi

Average Pace

6:36 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:37

57% of race

Time at Steady Pace

32:46

19% of race

Time at Slower Pace

41:32

24% of race

Average Pace: 6:36 /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 mi10:23:4119:396:1919:39
6:19
#2592
10K
6.21 mi10:43:1339:116:1819:32
6:17
#2451
15K
9.32 mi11:02:4558:436:1819:32
6:17
#2368
20K
12.43 mi11:22:481:18:466:2020:03
6:27
#2477
Half
13.11 mi11:27:081:23:066:204:20
6:21
#2496
25K
15.53 mi11:42:391:38:376:2115:31
6:24
#2445
30K
18.64 mi12:03:301:59:286:2520:51
6:43
#2497
20M
20.00 mi12:13:062:09:046:279:36
7:04
#2590
21M
21.00 mi12:20:222:16:206:307:16
7:16
#2621
35K
21.75 mi12:25:312:21:296:305:09
6:53
#2677
23M
23.00 mi12:34:172:30:156:328:46
7:00
#2699
24M
24.00 mi12:41:202:37:186:337:03
7:03
#2749
40K
24.85 mi12:47:342:43:326:356:14
7:17
#2802
25.2M
25.20 mi12:50:112:46:096:362:37
7:35
#2807
Finish
26.22 mi12:56:572:52:556:366:46
6:38
#2803
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2592246824682282(Top 8%)2177(Top 14%)2177(Top 39%)
10K6.21 mi3.10 mi2451+1412336+1322336+1322334(Top 8%)2233(Top 14%)2233(Top 40%)
15K9.32 mi3.11 mi2368+832263+732263+732282(Top 8%)2177(Top 14%)2177(Top 39%)
20K12.43 mi3.11 mi2477-1092364-1012364-1012828(Top 10%)2692(Top 17%)2692(Top 48%)
Half13.11 mi0.68 mi2496-192383-192383-192762(Top 10%)2638(Top 16%)2638(Top 47%)
25K15.53 mi2.42 mi2445+512334+492334+492360(Top 8%)2245(Top 14%)2245(Top 40%)
30K18.64 mi3.11 mi2497-522384-502384-502932(Top 10%)2760(Top 17%)2760(Top 49%)
20M20.00 mi1.36 mi2590-932473-892473-894446(Top 16%)4044(Top 25%)4044(Top 72%)
21M21.00 mi1.00 mi2621-312497-242497-243428(Top 12%)3140(Top 19%)3140(Top 56%)
35K21.75 mi0.75 mi2677-562547-502547-504559(Top 16%)4037(Top 25%)4037(Top 72%)
23M23.00 mi1.25 mi2699-222565-182565-183740(Top 13%)3363(Top 21%)3363(Top 60%)
24M24.00 mi1.00 mi2749-502606-412606-414871(Top 17%)4159(Top 26%)4159(Top 74%)
40K24.85 mi0.85 mi2802-532655-492655-495550(Top 20%)4569(Top 28%)4569(Top 81%)
25.2M25.20 mi0.35 mi2807-52658-32658-33731(Top 13%)3213(Top 20%)3213(Top 57%)
Finish26.22 mi1.02 mi2803+42652+62652+63527(Top 12%)3074(Top 19%)3074(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2282

Males

2177

M18-39

2177

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2334

Males

2233

M18-39

2233

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2282

Males

2177

M18-39

2177

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2828

Males

2692

M18-39

2692

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2762

Males

2638

M18-39

2638

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2360

Males

2245

M18-39

2245

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2932

Males

2760

M18-39

2760

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4446

Males

4044

M18-39

4044

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3428

Males

3140

M18-39

3140

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4559

Males

4037

M18-39

4037

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3740

Males

3363

M18-39

3363

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4871

Males

4159

M18-39

4159

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5550

Males

4569

M18-39

4569

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3731

Males

3213

M18-39

3213

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3527

Males

3074

M18-39

3074

Passing Analysis

Category:
Athletes Passed
767
Passed By
978
Net Change
-211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2592
5K → 10K19655+141#2592#2451
10K → 15K12946+83#2451#2368
15K → 20K40149-109#2368#2477
20K → Half827-19#2477#2496
Half → 25K8029+51#2496#2445
25K → 30K74126-52#2445#2497
30K → 20M26119-93#2497#2590
20M → 21M4374-31#2590#2621
21M → 35K1672-56#2621#2677
35K → 23M4870-22#2677#2699
23M → 24M2878-50#2699#2749
24M → 40K2477-53#2749#2802
40K → 25.2M1116-5#2802#2807
25.2M → Finish4440+4#2807#2803
TOTALS767978-211
📊

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