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BOSTON MARATHON 2025

Jake Prendergast

Bib: 31405•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:58
Rank: #23629
Start → 5K
9:19/mi
28:58 split
10K· 6.21 mi
57:03
Rank: #23142 (+487)
5K → 10K
9:02/mi
28:05 split
15K· 9.32 mi
1:24:27
Rank: #22536 (+606)
10K → 15K
8:49/mi
27:24 split
20K· 12.43 mi
1:53:19
Rank: #22440 (+96)
15K → 20K
9:17/mi
28:52 split
Half· 13.11 mi
1:59:19
Rank: #22351 (+89)
20K → Half
8:48/mi
6:00 split
25K· 15.53 mi
2:21:06
Rank: #21942 (+409)
Half → 25K
8:59/mi
21:47 split
30K· 18.64 mi
2:50:42
Rank: #21577 (+365)
25K → 30K
9:32/mi
29:36 split
20M
3:04:35
Rank: #21591 (-14)
30K → 20M
10:13/mi
13:53 split
21M
3:15:54
Rank: #21649 (-58)
20M → 21M
11:19/mi
11:19 split
35K· 21.75 mi
3:23:47
Rank: #21725 (-76)
21M → 35K
10:32/mi
7:53 split
23M
3:40:38
Rank: #22262 (-537)
35K → 23M
13:27/mi
16:51 split
24M
3:52:17
Rank: #22420 (-158)
23M → 24M
11:39/mi
11:39 split
40K· 24.85 mi
4:03:18
Rank: #22641 (-221)
24M → 40K
12:53/mi
11:01 split
25.2M
4:07:51
Rank: #22703 (-62)
40K → 25.2M
13:12/mi
4:33 split
Finish· 26.22 mi
4:19:13
Rank: #22862 (-159)
25.2M → Finish
11:09/mi
11:22 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:19
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:19:54
Pace10:40 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5528:589:1928:58
9:19
-
10K
6.21 mi12:19:0057:039:1128:05
9:02
-0:17
15K
9.32 mi12:46:241:24:279:0427:24
8:49
-0:13
20K
12.43 mi13:15:161:53:199:0728:52
9:17
+0:28
Half
13.11 mi13:21:161:59:199:066:00
8:48
-0:29
25K
15.53 mi13:43:032:21:069:0521:47
8:59
+0:11
30K
18.64 mi14:12:392:50:429:0929:36
9:32
+0:33
20M
20.00 mi14:26:323:04:359:1413:53
10:13
+0:41
21M
21.00 mi14:37:513:15:549:2011:19
11:19
+1:06
35K
21.75 mi14:45:443:23:479:227:53
10:32
-0:47
23M
23.00 mi15:02:353:40:389:3616:51
13:27
+2:55
24M
24.00 mi15:14:143:52:179:4111:39
11:39
-1:48
40K
24.85 mi15:25:154:03:189:4711:01
12:53
+1:14
25.2M
25.20 mi15:29:484:07:519:504:33
13:12
+0:19
Finish
26.22 mi15:41:104:19:139:5411:22
11:09
-2:03

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

8:48 /mi

Average Pace

9:54 /mi

Slowest Pace

13:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:06

54% of race

Time at Steady Pace

51:22

20% of race

Time at Slower Pace

1:06:45

26% of race

Average Pace: 9:53 /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 mi11:50:5528:589:1928:58
9:19
#23629
10K
6.21 mi12:19:0057:039:1128:05
9:02
#23142
15K
9.32 mi12:46:241:24:279:0427:24
8:49
#22536
20K
12.43 mi13:15:161:53:199:0728:52
9:17
#22440
Half
13.11 mi13:21:161:59:199:066:00
8:48
#22351
25K
15.53 mi13:43:032:21:069:0521:47
8:59
#21942
30K
18.64 mi14:12:392:50:429:0929:36
9:32
#21577
20M
20.00 mi14:26:323:04:359:1413:53
10:13
#21591
21M
21.00 mi14:37:513:15:549:2011:19
11:19
#21649
35K
21.75 mi14:45:443:23:479:227:53
10:32
#21725
23M
23.00 mi15:02:353:40:389:3616:51
13:27
#22262
24M
24.00 mi15:14:143:52:179:4111:39
11:39
#22420
40K
24.85 mi15:25:154:03:189:4711:01
12:53
#22641
25.2M
25.20 mi15:29:484:07:519:504:33
13:12
#22703
Finish
26.22 mi15:41:104:19:139:5411:22
11:09
#22862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23629140661406621112(Top 74%)12996(Top 81%)12996(Top 230%)
10K6.21 mi3.10 mi23142+48713854+21213854+21222545(Top 79%)13595(Top 84%)13595(Top 241%)
15K9.32 mi3.11 mi22536+60613599+25513599+25521112(Top 74%)12996(Top 81%)12996(Top 230%)
20K12.43 mi3.11 mi22440+9613546+5313546+5322244(Top 78%)13467(Top 84%)13467(Top 239%)
Half13.11 mi0.68 mi22351+8913495+5113495+5120877(Top 74%)12853(Top 80%)12853(Top 228%)
25K15.53 mi2.42 mi21942+40913312+18313312+18319823(Top 70%)12344(Top 77%)12344(Top 219%)
30K18.64 mi3.11 mi21577+36513128+18413128+18420047(Top 71%)12314(Top 76%)12314(Top 218%)
20M20.00 mi1.36 mi21591-1413119+913119+921612(Top 76%)12868(Top 80%)12868(Top 228%)
21M21.00 mi1.00 mi21649-5813118+113118+122181(Top 78%)13055(Top 81%)13055(Top 231%)
35K21.75 mi0.75 mi21725-7613143-2513143-2523249(Top 82%)13509(Top 84%)13509(Top 239%)
23M23.00 mi1.25 mi22262-53713339-19613339-19626847(Top 95%)15256(Top 95%)15256(Top 270%)
24M24.00 mi1.00 mi22420-15813394-5513394-5525150(Top 89%)14375(Top 89%)14375(Top 255%)
40K24.85 mi0.85 mi22641-22113471-7713471-7726178(Top 92%)14878(Top 92%)14878(Top 264%)
25.2M25.20 mi0.35 mi22703-6213496-2513496-2525283(Top 89%)14383(Top 89%)14383(Top 255%)
Finish26.22 mi1.02 mi22862-15913552-5613552-5625636(Top 90%)14592(Top 91%)14592(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21112

Males

12996

M18-39

12996

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22545

Males

13595

M18-39

13595

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21112

Males

12996

M18-39

12996

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22244

Males

13467

M18-39

13467

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20877

Males

12853

M18-39

12853

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19823

Males

12344

M18-39

12344

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20047

Males

12314

M18-39

12314

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21612

Males

12868

M18-39

12868

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22181

Males

13055

M18-39

13055

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23249

Males

13509

M18-39

13509

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

26847

Males

15256

M18-39

15256

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25150

Males

14375

M18-39

14375

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26178

Males

14878

M18-39

14878

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25283

Males

14383

M18-39

14383

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

25636

Males

14592

M18-39

14592

Passing Analysis

Category:
Athletes Passed
2541
Passed By
1774
Net Change
+767
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23629
5K → 10K55568+487#23629#23142
10K → 15K6148+606#23142#22536
15K → 20K214118+96#22536#22440
20K → Half934+89#22440#22351
Half → 25K4167+409#22351#21942
25K → 30K41045+365#21942#21577
30K → 20M91105-14#21577#21591
20M → 21M64122-58#21591#21649
21M → 35K25101-76#21649#21725
35K → 23M17554-537#21725#22262
23M → 24M22180-158#22262#22420
24M → 40K7228-221#22420#22641
40K → 25.2M365-62#22641#22703
25.2M → Finish10169-159#22703#22862
TOTALS25411774+767
📊

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