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BOSTON MARATHON 2025

Karl Fernandez

Bib: 30547•M

MD

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
29:20
Rank: #24039
Start → 5K
29:20 | 9:26/mi
10K· 6.21 mi
59:15
Rank: #24282 (-243)
5K → 10K
29:55 | 9:38/mi
15K· 9.32 mi
1:27:59
Rank: #23861 (+421)
10K → 15K
28:44 | 9:15/mi
20K· 12.43 mi
1:55:59
Rank: #23234 (+627)
15K → 20K
28:00 | 9:01/mi
Half· 13.11 mi
2:02:07
Rank: #23173 (+61)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:23:49
Rank: #22639 (+534)
Half → 25K
21:42 | 8:57/mi
30K· 18.64 mi
2:53:20
Rank: #22151 (+488)
25K → 30K
29:31 | 9:30/mi
20M
3:07:05
Rank: #22099 (+52)
30K → 20M
13:45 | 10:07/mi
21M
3:18:23
Rank: #22066 (+33)
20M → 21M
11:18 | 11:18/mi
35K· 21.75 mi
3:25:23
Rank: #21983 (+83)
21M → 35K
7:00 | 9:21/mi
23M
3:38:55
Rank: #22018 (-35)
35K → 23M
13:32 | 10:49/mi
24M
3:49:38
Rank: #22087 (-69)
23M → 24M
10:43 | 10:43/mi
40K· 24.85 mi
3:58:27
Rank: #22045 (+42)
24M → 40K
8:49 | 10:19/mi
25.2M
4:01:55
Rank: #21973 (+72)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
4:11:00
Rank: #21857 (+116)
25.2M → Finish
9:05 | 8:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:07
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:08:53
Pace9:50 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5029:209:2629:20
9:26
-
10K
6.21 mi12:25:4559:159:3229:55
9:38
+0:12
15K
9.32 mi12:54:291:27:599:2628:44
9:15
-0:23
20K
12.43 mi13:22:291:55:599:2028:00
9:01
-0:14
Half
13.11 mi13:28:372:02:079:196:08
8:59
-0:02
25K
15.53 mi13:50:192:23:499:1521:42
8:57
-0:02
30K
18.64 mi14:19:502:53:209:1829:31
9:30
+0:33
20M
20.00 mi14:33:353:07:059:2113:45
10:07
+0:37
21M
21.00 mi14:44:533:18:239:2711:18
11:18
+1:11
35K
21.75 mi14:51:533:25:239:277:00
9:21
-1:57
23M
23.00 mi15:05:253:38:559:3113:32
10:49
+1:28
24M
24.00 mi15:16:083:49:389:3410:43
10:43
-0:06
40K
24.85 mi15:24:573:58:279:368:49
10:19
-0:24
25.2M
25.20 mi15:28:254:01:559:363:28
10:03
-0:16
Finish
26.22 mi15:37:304:11:009:359:05
8:55
-1:08

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

8:55 /mi

Average Pace

9:35 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:55

26% of race

Time at Steady Pace

2:04:30

50% of race

Time at Slower Pace

1:01:35

25% of race

Average Pace: 9:34 /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 mi11:55:5029:209:2629:20
9:26
#24039
10K
6.21 mi12:25:4559:159:3229:55
9:38
#24282
15K
9.32 mi12:54:291:27:599:2628:44
9:15
#23861
20K
12.43 mi13:22:291:55:599:2028:00
9:01
#23234
Half
13.11 mi13:28:372:02:079:196:08
8:59
#23173
25K
15.53 mi13:50:192:23:499:1521:42
8:57
#22639
30K
18.64 mi14:19:502:53:209:1829:31
9:30
#22151
20M
20.00 mi14:33:353:07:059:2113:45
10:07
#22099
21M
21.00 mi14:44:533:18:239:2711:18
11:18
#22066
35K
21.75 mi14:51:533:25:239:277:00
9:21
#21983
23M
23.00 mi15:05:253:38:559:3113:32
10:49
#22018
24M
24.00 mi15:16:083:49:389:3410:43
10:43
#22087
40K
24.85 mi15:24:573:58:279:368:49
10:19
#22045
25.2M
25.20 mi15:28:254:01:559:363:28
10:03
#21973
Finish
26.22 mi15:37:304:11:009:359:05
8:55
#21857
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24039142611426123025(Top 81%)13851(Top 86%)13851(Top 245%)
10K6.21 mi3.10 mi24282-24314386-12514386-12524426(Top 86%)14435(Top 90%)14435(Top 256%)
15K9.32 mi3.11 mi23861+42114198+18814198+18823025(Top 81%)13851(Top 86%)13851(Top 245%)
20K12.43 mi3.11 mi23234+62713919+27913919+27921035(Top 74%)12901(Top 80%)12901(Top 229%)
Half13.11 mi0.68 mi23173+6113893+2613893+2621763(Top 77%)13251(Top 82%)13251(Top 235%)
25K15.53 mi2.42 mi22639+53413632+26113632+26119683(Top 69%)12277(Top 76%)12277(Top 218%)
30K18.64 mi3.11 mi22151+48813384+24813384+24819944(Top 70%)12260(Top 76%)12260(Top 217%)
20M20.00 mi1.36 mi22099+5213344+4013344+4021332(Top 75%)12739(Top 79%)12739(Top 226%)
21M21.00 mi1.00 mi22066+3313304+4013304+4022143(Top 78%)13035(Top 81%)13035(Top 231%)
35K21.75 mi0.75 mi21983+8313251+5313251+5319794(Top 70%)11878(Top 74%)11878(Top 211%)
23M23.00 mi1.25 mi22018-3513233+1813233+1822761(Top 80%)13227(Top 82%)13227(Top 234%)
24M24.00 mi1.00 mi22087-6913246-1313246-1323343(Top 82%)13481(Top 84%)13481(Top 239%)
40K24.85 mi0.85 mi22045+4213204+4213204+4221402(Top 75%)12474(Top 77%)12474(Top 221%)
25.2M25.20 mi0.35 mi21973+7213168+3613168+3617263(Top 61%)10504(Top 65%)10504(Top 186%)
Finish26.22 mi1.02 mi21857+11613098+7013098+7018598(Top 65%)11178(Top 69%)11178(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23025

Males

13851

M18-39

13851

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24426

Males

14435

M18-39

14435

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23025

Males

13851

M18-39

13851

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

21035

Males

12901

M18-39

12901

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21763

Males

13251

M18-39

13251

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19683

Males

12277

M18-39

12277

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19944

Males

12260

M18-39

12260

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21332

Males

12739

M18-39

12739

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22143

Males

13035

M18-39

13035

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19794

Males

11878

M18-39

11878

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22761

Males

13227

M18-39

13227

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23343

Males

13481

M18-39

13481

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21402

Males

12474

M18-39

12474

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17263

Males

10504

M18-39

10504

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18598

Males

11178

M18-39

11178

Passing Analysis

Category:
Athletes Passed
2983
Passed By
801
Net Change
+2182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24039
5K → 10K139382-243#24039#24282
10K → 15K44524+421#24282#23861
15K → 20K6281+627#23861#23234
20K → Half687+61#23234#23173
Half → 25K5362+534#23173#22639
25K → 30K50113+488#22639#22151
30K → 20M11159+52#22151#22099
20M → 21M9764+33#22099#22066
21M → 35K929+83#22066#21983
35K → 23M69104-35#21983#22018
23M → 24M3099-69#22018#22087
24M → 40K7331+42#22087#22045
40K → 25.2M731+72#22045#21973
25.2M → Finish1215+116#21973#21857
TOTALS2983801+2182
📊

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