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BOSTON MARATHON 2023

Heyder Alfonso-Camelo

Bib: 5935•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M40-44)
#0 / 2241
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
6:34/mi
20:25
↑ 97↓ 3451.5%
10K· 6.21 mi
6:33/mi
40:47
↑ 79↓ 1380.4%
15K· 9.32 mi
6:31/mi
1:01:03
↑ 67↓ 78
20K· 12.43 mi
6:43/mi
1:21:56
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:26:28
↑ 19↓ 370.5%
25K· 15.53 mi
6:34/mi
1:42:24
↑ 66↓ 880.2%
30K· 18.64 mi
6:52/mi
2:03:43
↑ 181↓ 1480.2%
20M
6:55/mi
2:13:07
↑ 64↓ 500.2%
21M
7:24/mi
2:20:31
↑ 106↓ 241.6%
35K· 21.75 mi
6:42/mi
2:25:32
↑ 17↓ 861.7%
23M
7:11/mi
2:34:32
↑ 23↓ 630.6%
24M
7:17/mi
2:41:49
↓ 821.3%
40K· 24.85 mi
7:43/mi
2:48:25
↓ 200.3%
25.2M
7:50/mi
2:51:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
2:58:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:28
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:31:48
Pace7:00 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4920:256:3420:25
6:34
-
10K
6.21 mi10:43:1140:476:3420:22
6:33
-0:01
15K
9.32 mi11:03:271:01:036:3320:16
6:31
-0:02
20K
12.43 mi11:24:201:21:566:3620:53
6:43
+0:12
Half
13.11 mi11:28:521:26:286:364:32
6:39
-0:04
25K
15.53 mi11:44:481:42:246:3615:56
6:34
-0:05
30K
18.64 mi12:06:072:03:436:3821:19
6:52
+0:18
20M
20.00 mi12:15:312:13:076:399:24
6:55
+0:03
21M
21.00 mi12:22:552:20:316:417:24
7:24
+0:29
35K
21.75 mi12:27:562:25:326:425:01
6:42
-0:42
23M
23.00 mi12:36:562:34:326:439:00
7:11
+0:29
24M
24.00 mi12:44:132:41:496:457:17
7:17
+0:06
40K
24.85 mi12:50:492:48:256:476:36
7:43
+0:26
25.2M
25.20 mi12:53:312:51:076:472:42
7:50
+0:07
Finish
26.22 mi13:00:402:58:166:487:09
7:01
-0:49

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

6:31 /mi

Average Pace

6:48 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:31

46% of race

Time at Steady Pace

1:03:46

36% of race

Time at Slower Pace

32:59

19% of race

Average Pace: 6:48 /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 mi10:22:4920:256:3420:25
6:34
#2682
10K
6.21 mi10:43:1140:476:3420:22
6:33
#2885
15K
9.32 mi11:03:271:01:036:3320:16
6:31
#2823
20K
12.43 mi11:24:201:21:566:3620:53
6:43
#3036
Half
13.11 mi11:28:521:26:286:364:32
6:39
#3069
25K
15.53 mi11:44:481:42:246:3615:56
6:34
#2930
30K
18.64 mi12:06:072:03:436:3821:19
6:52
#2960
20M
20.00 mi12:15:312:13:076:399:24
6:55
#2977
21M
21.00 mi12:22:552:20:316:417:24
7:24
#3026
35K
21.75 mi12:27:562:25:326:425:01
6:42
#3039
23M
23.00 mi12:36:562:34:326:439:00
7:11
#3118
24M
24.00 mi12:44:132:41:496:457:17
7:17
#3269
40K
24.85 mi12:50:492:48:256:476:36
7:43
#3466
25.2M
25.20 mi12:53:312:51:076:472:42
7:50
#3485
Finish
26.22 mi13:00:402:58:166:487:09
7:01
#3575
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2682255425542776(Top 10%)2652(Top 17%)2652(Top 118%)
10K6.21 mi3.10 mi2885-2032751-1972751-1973166(Top 12%)3018(Top 20%)3018(Top 135%)
15K9.32 mi3.11 mi2823+622695+562695+562776(Top 10%)2652(Top 17%)2652(Top 118%)
20K12.43 mi3.11 mi3036-2132898-2032898-2033741(Top 14%)3535(Top 23%)3535(Top 158%)
Half13.11 mi0.68 mi3069-332927-292927-293782(Top 14%)3566(Top 23%)3566(Top 159%)
25K15.53 mi2.42 mi2930+1392800+1272800+1272558(Top 10%)2448(Top 16%)2448(Top 109%)
30K18.64 mi3.11 mi2960-302827-272827-273384(Top 13%)3184(Top 21%)3184(Top 142%)
20M20.00 mi1.36 mi2977-172842-152842-153525(Top 13%)3290(Top 22%)3290(Top 147%)
21M21.00 mi1.00 mi3026-492881-392881-394109(Top 15%)3778(Top 25%)3778(Top 169%)
35K21.75 mi0.75 mi3039-132888-72888-73591(Top 13%)3325(Top 22%)3325(Top 148%)
23M23.00 mi1.25 mi3118-792958-702958-704717(Top 18%)4246(Top 28%)4246(Top 189%)
24M24.00 mi1.00 mi3269-1513095-1373095-1376212(Top 23%)5209(Top 34%)5209(Top 232%)
40K24.85 mi0.85 mi3466-1973274-1793274-1798043(Top 30%)6262(Top 41%)6262(Top 279%)
25.2M25.20 mi0.35 mi3485-193290-163290-165448(Top 20%)4547(Top 30%)4547(Top 203%)
Finish26.22 mi1.02 mi3575-903365-753365-755275(Top 20%)4455(Top 29%)4455(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2776

Males

2652

M40-44

2652

5K→10K

3.1 - 6.2 mi

Top 12%
×5story building
+79ft-138ft

Overall

3166

Males

3018

M40-44

3018

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2776

Males

2652

M40-44

2652

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3741

Males

3535

M40-44

3535

20K→Half

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

3782

Males

3566

M40-44

3566

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2558

Males

2448

M40-44

2448

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3384

Males

3184

M40-44

3184

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3525

Males

3290

M40-44

3290

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4109

Males

3778

M40-44

3778

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3591

Males

3325

M40-44

3325

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4717

Males

4246

M40-44

4246

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6212

Males

5209

M40-44

5209

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8043

Males

6262

M40-44

6262

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5448

Males

4547

M40-44

4547

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5275

Males

4455

M40-44

4455

Passing Analysis

Category:
Athletes Passed
635
Passed By
1528
Net Change
-893
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2682
5K → 10K78281-203#2682#2885
10K → 15K11957+62#2885#2823
15K → 20K21234-213#2823#3036
20K → Half437-33#3036#3069
Half → 25K15011+139#3069#2930
25K → 30K77107-30#2930#2960
30K → 20M3754-17#2960#2977
20M → 21M2675-49#2977#3026
21M → 35K2942-13#3026#3039
35K → 23M33112-79#3039#3118
23M → 24M15166-151#3118#3269
24M → 40K9206-197#3269#3466
40K → 25.2M1029-19#3466#3485
25.2M → Finish27117-90#3485#3575
TOTALS6351528-893
📊

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