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BOSTON MARATHON 2025

Neremiah Joakim Castano

Bib: 7677•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M40-44)
#0 / 2247
Top 49%
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
6:56/mi
21:31
↑ 97↓ 3451.5%
10K· 6.21 mi
6:48/mi
42:39
↑ 79↓ 1380.4%
15K· 9.32 mi
6:47/mi
1:03:43
↑ 67↓ 78
20K· 12.43 mi
6:55/mi
1:25:12
↑ 106↓ 860.1%
Half· 13.11 mi
6:55/mi
1:29:55
↑ 19↓ 370.5%
25K· 15.53 mi
6:59/mi
1:46:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:37/mi
2:10:31
↑ 181↓ 1480.2%
20M
7:48/mi
2:21:07
↑ 64↓ 500.2%
21M
8:33/mi
2:29:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:35:10
↑ 17↓ 861.7%
23M
7:46/mi
2:44:54
↑ 23↓ 630.6%
24M
7:20/mi
2:52:14
↓ 821.3%
40K· 24.85 mi
7:27/mi
2:58:36
↓ 200.3%
25.2M
8:30/mi
3:01:32
↑ 13↓ 160.2%
Finish· 26.22 mi
6:41/mi
3:08:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:55
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:0321:316:5621:31
6:56
-
10K
6.21 mi10:51:1142:396:5221:08
6:48
-0:08
15K
9.32 mi11:12:151:03:436:5021:04
6:47
-0:01
20K
12.43 mi11:33:441:25:126:5121:29
6:55
+0:08
Half
13.11 mi11:38:271:29:556:524:43
6:55
0:00
25K
15.53 mi11:55:241:46:526:5316:57
6:59
+0:04
30K
18.64 mi12:19:032:10:317:0023:39
7:37
+0:38
20M
20.00 mi12:29:392:21:077:0310:36
7:48
+0:11
21M
21.00 mi12:38:122:29:407:088:33
8:33
+0:45
35K
21.75 mi12:43:422:35:107:085:30
7:21
-1:12
23M
23.00 mi12:53:262:44:547:109:44
7:46
+0:25
24M
24.00 mi13:00:462:52:147:117:20
7:20
-0:26
40K
24.85 mi13:07:082:58:367:116:22
7:27
+0:07
25.2M
25.20 mi13:10:043:01:327:122:56
8:30
+1:03
Finish
26.22 mi13:16:533:08:217:116:49
6:41
-1:49

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

6:41 /mi

Average Pace

7:11 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:41

60% of race

Time at Steady Pace

42:51

23% of race

Time at Slower Pace

31:49

17% of race

Average Pace: 7:11 /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 mi10:30:0321:316:5621:31
6:56
#7257
10K
6.21 mi10:51:1142:396:5221:08
6:48
#6879
15K
9.32 mi11:12:151:03:436:5021:04
6:47
#6530
20K
12.43 mi11:33:441:25:126:5121:29
6:55
#6454
Half
13.11 mi11:38:271:29:556:524:43
6:55
#6490
25K
15.53 mi11:55:241:46:526:5316:57
6:59
#6410
30K
18.64 mi12:19:032:10:317:0023:39
7:37
#6684
20M
20.00 mi12:29:392:21:077:0310:36
7:48
#6740
21M
21.00 mi12:38:122:29:407:088:33
8:33
#6882
35K
21.75 mi12:43:422:35:107:085:30
7:21
#6877
23M
23.00 mi12:53:262:44:547:109:44
7:46
#6907
24M
24.00 mi13:00:462:52:147:117:20
7:20
#6828
40K
24.85 mi13:07:082:58:367:116:22
7:27
#6774
25.2M
25.20 mi13:10:043:01:327:122:56
8:30
#6775
Finish
26.22 mi13:16:533:08:217:116:49
6:41
#6585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7257648864885903(Top 21%)5377(Top 33%)5377(Top 239%)
10K6.21 mi3.10 mi6879+3786203+2856203+2856411(Top 23%)5811(Top 36%)5811(Top 259%)
15K9.32 mi3.11 mi6530+3495908+2955908+2955903(Top 21%)5377(Top 33%)5377(Top 239%)
20K12.43 mi3.11 mi6454+765842+665842+666309(Top 22%)5674(Top 35%)5674(Top 253%)
Half13.11 mi0.68 mi6490-365867-255867-256975(Top 25%)6195(Top 38%)6195(Top 276%)
25K15.53 mi2.42 mi6410+805795+725795+726277(Top 22%)5601(Top 35%)5601(Top 249%)
30K18.64 mi3.11 mi6684-2745969-1745969-1748520(Top 30%)6890(Top 43%)6890(Top 307%)
20M20.00 mi1.36 mi6740-565990-215990-218995(Top 32%)6982(Top 43%)6982(Top 311%)
21M21.00 mi1.00 mi6882-1426076-866076-8610755(Top 38%)7735(Top 48%)7735(Top 344%)
35K21.75 mi0.75 mi6877+56052+246052+247528(Top 27%)6005(Top 37%)6005(Top 267%)
23M23.00 mi1.25 mi6907-306038+146038+148379(Top 29%)6375(Top 40%)6375(Top 284%)
24M24.00 mi1.00 mi6828+795952+865952+866594(Top 23%)5288(Top 33%)5288(Top 235%)
40K24.85 mi0.85 mi6774+545886+665886+666470(Top 23%)5126(Top 32%)5126(Top 228%)
25.2M25.20 mi0.35 mi6775-15874+125874+128750(Top 31%)6309(Top 39%)6309(Top 281%)
Finish26.22 mi1.02 mi6585+1905712+1625712+1623825(Top 13%)3313(Top 21%)3313(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5903

Males

5377

M40-44

5377

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6411

Males

5811

M40-44

5811

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5903

Males

5377

M40-44

5377

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

6309

Males

5674

M40-44

5674

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

6975

Males

6195

M40-44

6195

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6277

Males

5601

M40-44

5601

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8520

Males

6890

M40-44

6890

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8995

Males

6982

M40-44

6982

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10755

Males

7735

M40-44

7735

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7528

Males

6005

M40-44

6005

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

8379

Males

6375

M40-44

6375

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6594

Males

5288

M40-44

5288

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6470

Males

5126

M40-44

5126

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8750

Males

6309

M40-44

6309

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3825

Males

3313

M40-44

3313

Passing Analysis

Category:
Athletes Passed
1957
Passed By
1285
Net Change
+672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7257
5K → 10K43658+378#7257#6879
10K → 15K37829+349#6879#6530
15K → 20K17094+76#6530#6454
20K → Half1147-36#6454#6490
Half → 25K16585+80#6490#6410
25K → 30K110384-274#6410#6684
30K → 20M70126-56#6684#6740
20M → 21M46188-142#6740#6882
21M → 35K5853+5#6882#6877
35K → 23M82112-30#6877#6907
23M → 24M10728+79#6907#6828
24M → 40K9440+54#6828#6774
40K → 25.2M3738-1#6774#6775
25.2M → Finish1933+190#6775#6585
TOTALS19571285+672
📊

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