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BOSTON MARATHON 2025

Alvaro Isaza

Bib: 14218•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
7:53/mi
24:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:13:02
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:37:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:42:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:01:48
↑ 66↓ 880.2%
30K· 18.64 mi
8:23/mi
2:27:50
↑ 181↓ 1480.2%
20M
8:25/mi
2:39:16
↑ 64↓ 500.2%
21M
8:23/mi
2:47:39
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:53:30
↑ 17↓ 861.7%
23M
8:02/mi
3:03:34
↑ 23↓ 630.6%
24M
8:02/mi
3:11:36
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:18:47
↓ 200.3%
25.2M
9:43/mi
3:22:08
↑ 13↓ 160.2%
Finish· 26.22 mi
8:36/mi
3:30:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:47
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:48:07
Pace8:15 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1024:307:5324:30
7:53
-
10K
6.21 mi11:19:3448:547:5224:24
7:51
-0:02
15K
9.32 mi11:43:421:13:027:5024:08
7:46
-0:05
20K
12.43 mi12:08:171:37:377:5124:35
7:55
+0:09
Half
13.11 mi12:13:271:42:477:505:10
7:34
-0:21
25K
15.53 mi12:32:282:01:487:5019:01
7:51
+0:17
30K
18.64 mi12:58:302:27:507:5626:02
8:23
+0:32
20M
20.00 mi13:09:562:39:167:5811:26
8:25
+0:02
21M
21.00 mi13:18:192:47:397:598:23
8:23
-0:02
35K
21.75 mi13:24:102:53:307:595:51
7:49
-0:34
23M
23.00 mi13:34:143:03:347:5910:04
8:02
+0:13
24M
24.00 mi13:42:163:11:367:598:02
8:02
0:00
40K
24.85 mi13:49:273:18:478:007:11
8:24
+0:22
25.2M
25.20 mi13:52:483:22:088:013:21
9:43
+1:19
Finish
26.22 mi14:01:343:30:548:038:46
8:36
-1:07

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

7:34 /mi

Average Pace

8:03 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:18

14% of race

Time at Steady Pace

1:56:27

55% of race

Time at Slower Pace

1:05:09

31% of race

Average Pace: 8:03 /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 mi10:55:1024:307:5324:30
7:53
#15537
10K
6.21 mi11:19:3448:547:5224:24
7:51
#15398
15K
9.32 mi11:43:421:13:027:5024:08
7:46
#14940
20K
12.43 mi12:08:171:37:377:5124:35
7:55
#14702
Half
13.11 mi12:13:271:42:477:505:10
7:34
#14572
25K
15.53 mi12:32:282:01:487:5019:01
7:51
#14223
30K
18.64 mi12:58:302:27:507:5626:02
8:23
#14122
20M
20.00 mi13:09:562:39:167:5811:26
8:25
#14012
21M
21.00 mi13:18:192:47:397:598:23
8:23
#13725
35K
21.75 mi13:24:102:53:307:595:51
7:49
#13609
23M
23.00 mi13:34:143:03:347:5910:04
8:02
#13382
24M
24.00 mi13:42:163:11:367:598:02
8:02
#13273
40K
24.85 mi13:49:273:18:478:007:11
8:24
#13249
25.2M
25.20 mi13:52:483:22:088:013:21
9:43
#13276
Finish
26.22 mi14:01:343:30:548:038:46
8:36
#13447
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15537106371063714079(Top 50%)9973(Top 62%)9973(Top 500%)
10K6.21 mi3.10 mi15398+13910579+5810579+5815271(Top 54%)10523(Top 65%)10523(Top 527%)
15K9.32 mi3.11 mi14940+45810375+20410375+20414079(Top 50%)9973(Top 62%)9973(Top 500%)
20K12.43 mi3.11 mi14702+23810250+12510250+12514179(Top 50%)9950(Top 62%)9950(Top 498%)
Half13.11 mi0.68 mi14572+13010199+5110199+5112309(Top 43%)9164(Top 57%)9164(Top 459%)
25K15.53 mi2.42 mi14223+34910010+18910010+18912678(Top 45%)9159(Top 57%)9159(Top 459%)
30K18.64 mi3.11 mi14122+1019905+1059905+10514007(Top 49%)9597(Top 60%)9597(Top 481%)
20M20.00 mi1.36 mi14012+1109823+829823+8213224(Top 47%)9089(Top 56%)9089(Top 455%)
21M21.00 mi1.00 mi13725+2879669+1549669+1549751(Top 34%)7243(Top 45%)7243(Top 363%)
35K21.75 mi0.75 mi13609+1169594+759594+7510982(Top 39%)7865(Top 49%)7865(Top 394%)
23M23.00 mi1.25 mi13382+2279457+1379457+13710328(Top 36%)7412(Top 46%)7412(Top 371%)
24M24.00 mi1.00 mi13273+1099389+689389+6811485(Top 40%)7906(Top 49%)7906(Top 396%)
40K24.85 mi0.85 mi13249+249344+459344+4512785(Top 45%)8426(Top 52%)8426(Top 422%)
25.2M25.20 mi0.35 mi13276-279345-19345-115616(Top 55%)9682(Top 60%)9682(Top 485%)
Finish26.22 mi1.02 mi13447-1719404-599404-5916823(Top 59%)10304(Top 64%)10304(Top 516%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14079

Males

9973

M50-54

9973

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15271

Males

10523

M50-54

10523

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14079

Males

9973

M50-54

9973

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14179

Males

9950

M50-54

9950

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12309

Males

9164

M50-54

9164

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12678

Males

9159

M50-54

9159

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

14007

Males

9597

M50-54

9597

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13224

Males

9089

M50-54

9089

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9751

Males

7243

M50-54

7243

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10982

Males

7865

M50-54

7865

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10328

Males

7412

M50-54

7412

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11485

Males

7906

M50-54

7906

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12785

Males

8426

M50-54

8426

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15616

Males

9682

M50-54

9682

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

16823

Males

10304

M50-54

10304

Passing Analysis

Category:
Athletes Passed
3088
Passed By
998
Net Change
+2090
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15537
5K → 10K386247+139#15537#15398
10K → 15K49638+458#15398#14940
15K → 20K32082+238#14940#14702
20K → Half1311+130#14702#14572
Half → 25K36920+349#14572#14223
25K → 30K298197+101#14223#14122
30K → 20M16858+110#14122#14012
20M → 21M2925+287#14012#13725
21M → 35K1215+116#13725#13609
35K → 23M23811+227#13609#13382
23M → 24M13122+109#13382#13273
24M → 40K9066+24#13273#13249
40K → 25.2M2754-27#13249#13276
25.2M → Finish21192-171#13276#13447
TOTALS3088998+2090
📊

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