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BOSTON MARATHON 2023

Louis Ferro

Bib: 19410•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:20/mi
25:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
51:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:16:31
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:42:21
↑ 106↓ 860.1%
Half· 13.11 mi
8:01/mi
1:47:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:08:28
↑ 66↓ 880.2%
30K· 18.64 mi
9:02/mi
2:36:31
↑ 181↓ 1480.2%
20M
9:23/mi
2:49:16
↑ 64↓ 500.2%
21M
10:11/mi
2:59:27
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:06:11
↑ 17↓ 861.7%
23M
9:44/mi
3:18:22
↑ 23↓ 630.6%
24M
9:34/mi
3:27:56
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:36:27
↓ 200.3%
25.2M
10:35/mi
3:40:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:29/mi
3:49:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:01:57
Pace9:18 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2725:548:2025:54
8:20
-
10K
6.21 mi11:45:4351:108:1425:16
8:08
-0:12
15K
9.32 mi12:11:041:16:318:1325:21
8:10
+0:02
20K
12.43 mi12:36:541:42:218:1425:50
8:19
+0:09
Half
13.11 mi12:42:221:47:498:135:28
8:01
-0:18
25K
15.53 mi13:03:012:08:288:1620:39
8:31
+0:30
30K
18.64 mi13:31:042:36:318:2428:03
9:02
+0:31
20M
20.00 mi13:43:492:49:168:2812:45
9:23
+0:21
21M
21.00 mi13:54:002:59:278:3310:11
10:11
+0:48
35K
21.75 mi14:00:443:06:118:346:44
9:00
-1:11
23M
23.00 mi14:12:553:18:228:3712:11
9:44
+0:44
24M
24.00 mi14:22:293:27:568:409:34
9:34
-0:10
40K
24.85 mi14:31:003:36:278:438:31
9:58
+0:24
25.2M
25.20 mi14:34:393:40:068:443:39
10:35
+0:37
Finish
26.22 mi14:44:193:49:468:469:40
9:29
-1:06

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

8:01 /mi

Average Pace

8:46 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:28

56% of race

Time at Steady Pace

47:32

21% of race

Time at Slower Pace

53:46

23% of race

Average Pace: 8:46 /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 mi11:20:2725:548:2025:54
8:20
#16389
10K
6.21 mi11:45:4351:108:1425:16
8:08
#16067
15K
9.32 mi12:11:041:16:318:1325:21
8:10
#15896
20K
12.43 mi12:36:541:42:218:1425:50
8:19
#15819
Half
13.11 mi12:42:221:47:498:135:28
8:01
#15749
25K
15.53 mi13:03:012:08:288:1620:39
8:31
#15820
30K
18.64 mi13:31:042:36:318:2428:03
9:02
#16133
20M
20.00 mi13:43:492:49:168:2812:45
9:23
#16309
21M
21.00 mi13:54:002:59:278:3310:11
10:11
#16461
35K
21.75 mi14:00:443:06:118:346:44
9:00
#16521
23M
23.00 mi14:12:553:18:228:3712:11
9:44
#16731
24M
24.00 mi14:22:293:27:568:409:34
9:34
#16895
40K
24.85 mi14:31:003:36:278:438:31
9:58
#17049
25.2M
25.20 mi14:34:393:40:068:443:39
10:35
#17108
Finish
26.22 mi14:44:193:49:468:469:40
9:29
#17292
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16389108431084315567(Top 58%)10529(Top 69%)10529(Top 740%)
10K6.21 mi3.10 mi16067+32210725+11810725+11815757(Top 59%)10625(Top 70%)10625(Top 747%)
15K9.32 mi3.11 mi15896+17110665+6010665+6015567(Top 58%)10529(Top 69%)10529(Top 740%)
20K12.43 mi3.11 mi15819+7710606+5910606+5915684(Top 59%)10518(Top 69%)10518(Top 740%)
Half13.11 mi0.68 mi15749+7010579+2710579+2714467(Top 54%)10106(Top 67%)10106(Top 711%)
25K15.53 mi2.42 mi15820-7110575+410575+416296(Top 61%)10669(Top 70%)10669(Top 750%)
30K18.64 mi3.11 mi16133-31310655-8010655-8017320(Top 65%)11045(Top 73%)11045(Top 777%)
20M20.00 mi1.36 mi16309-17610699-4410699-4418368(Top 69%)11395(Top 75%)11395(Top 801%)
21M21.00 mi1.00 mi16461-15210755-5610755-5618641(Top 70%)11487(Top 76%)11487(Top 808%)
35K21.75 mi0.75 mi16521-6010773-1810773-1817894(Top 67%)11095(Top 73%)11095(Top 780%)
23M23.00 mi1.25 mi16731-21010847-7410847-7419178(Top 72%)11642(Top 77%)11642(Top 819%)
24M24.00 mi1.00 mi16895-16410897-5010897-5019428(Top 73%)11723(Top 77%)11723(Top 824%)
40K24.85 mi0.85 mi17049-15410941-4410941-4419850(Top 75%)11851(Top 78%)11851(Top 833%)
25.2M25.20 mi0.35 mi17108-5910963-2210963-2219314(Top 73%)11605(Top 76%)11605(Top 816%)
Finish26.22 mi1.02 mi17292-18411035-7211035-7220055(Top 75%)12002(Top 79%)12002(Top 844%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15567

Males

10529

M55-59

10529

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15757

Males

10625

M55-59

10625

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15567

Males

10529

M55-59

10529

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15684

Males

10518

M55-59

10518

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14467

Males

10106

M55-59

10106

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16296

Males

10669

M55-59

10669

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17320

Males

11045

M55-59

11045

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18368

Males

11395

M55-59

11395

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18641

Males

11487

M55-59

11487

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17894

Males

11095

M55-59

11095

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19178

Males

11642

M55-59

11642

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19428

Males

11723

M55-59

11723

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19850

Males

11851

M55-59

11851

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19314

Males

11605

M55-59

11605

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

20055

Males

12002

M55-59

12002

Passing Analysis

Category:
Athletes Passed
1505
Passed By
2408
Net Change
-903
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16389
5K → 10K481159+322#16389#16067
10K → 15K292121+171#16067#15896
15K → 20K206129+77#15896#15819
20K → Half799+70#15819#15749
Half → 25K111182-71#15749#15820
25K → 30K105418-313#15820#16133
30K → 20M38214-176#16133#16309
20M → 21M42194-152#16309#16461
21M → 35K3494-60#16461#16521
35K → 23M38248-210#16521#16731
23M → 24M21185-164#16731#16895
24M → 40K25179-154#16895#17049
40K → 25.2M1069-59#17049#17108
25.2M → Finish23207-184#17108#17292
TOTALS15052408-903
📊

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