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BOSTON MARATHON 2023

Steven Estrada

Bib: 4708•M

AL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M45-49)
#0 / 2252
Top 7%
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
6:43/mi
20:53
↑ 97↓ 3451.5%
10K· 6.21 mi
6:35/mi
41:20
↑ 79↓ 1380.4%
15K· 9.32 mi
6:35/mi
1:01:48
↑ 67↓ 78
20K· 12.43 mi
6:38/mi
1:22:24
↑ 106↓ 860.1%
Half· 13.11 mi
6:30/mi
1:26:50
↑ 19↓ 370.5%
25K· 15.53 mi
6:39/mi
1:42:57
↑ 66↓ 880.2%
30K· 18.64 mi
6:46/mi
2:03:58
↑ 181↓ 1480.2%
20M
6:51/mi
2:13:16
↑ 64↓ 500.2%
21M
7:09/mi
2:20:25
↑ 106↓ 241.6%
35K· 21.75 mi
6:37/mi
2:25:22
↑ 17↓ 861.7%
23M
6:47/mi
2:33:52
↑ 23↓ 630.6%
24M
6:33/mi
2:40:25
↓ 821.3%
40K· 24.85 mi
6:44/mi
2:46:10
↓ 200.3%
25.2M
7:27/mi
2:48:44
↑ 13↓ 160.2%
Finish· 26.22 mi
6:32/mi
2:55:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:50
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:28:33
Pace6:45 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1520:536:4320:53
6:43
-
10K
6.21 mi10:43:4241:206:3920:27
6:35
-0:08
15K
9.32 mi11:04:101:01:486:3820:28
6:35
0:00
20K
12.43 mi11:24:461:22:246:3820:36
6:38
+0:03
Half
13.11 mi11:29:121:26:506:374:26
6:30
-0:08
25K
15.53 mi11:45:191:42:576:3816:07
6:39
+0:09
30K
18.64 mi12:06:202:03:586:3921:01
6:46
+0:07
20M
20.00 mi12:15:382:13:166:409:18
6:51
+0:05
21M
21.00 mi12:22:472:20:256:417:09
7:09
+0:18
35K
21.75 mi12:27:442:25:226:414:57
6:37
-0:32
23M
23.00 mi12:36:142:33:526:418:30
6:47
+0:10
24M
24.00 mi12:42:472:40:256:416:33
6:33
-0:14
40K
24.85 mi12:48:322:46:106:415:45
6:44
+0:11
25.2M
25.20 mi12:51:062:48:446:422:34
7:27
+0:43
Finish
26.22 mi12:57:452:55:236:426:39
6:32
-0:55

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

6:30 /mi

Average Pace

6:42 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:40

94% of race

Time at Steady Pace

9:43

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:41 /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 mi10:23:1520:536:4320:53
6:43
#3848
10K
6.21 mi10:43:4241:206:3920:27
6:35
#3544
15K
9.32 mi11:04:101:01:486:3820:28
6:35
#3420
20K
12.43 mi11:24:461:22:246:3820:36
6:38
#3301
Half
13.11 mi11:29:121:26:506:374:26
6:30
#3255
25K
15.53 mi11:45:191:42:576:3816:07
6:39
#3185
30K
18.64 mi12:06:202:03:586:3921:01
6:46
#3041
20M
20.00 mi12:15:382:13:166:409:18
6:51
#3021
21M
21.00 mi12:22:472:20:256:417:09
7:09
#2994
35K
21.75 mi12:27:442:25:226:414:57
6:37
#2978
23M
23.00 mi12:36:142:33:526:418:30
6:47
#2918
24M
24.00 mi12:42:472:40:256:416:33
6:33
#2873
40K
24.85 mi12:48:322:46:106:415:45
6:44
#2816
25.2M
25.20 mi12:51:062:48:446:422:34
7:27
#2822
Finish
26.22 mi12:57:452:55:236:426:39
6:32
#2789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3848361436143189(Top 12%)3035(Top 20%)3035(Top 135%)
10K6.21 mi3.10 mi3544+3043345+2693345+2693347(Top 13%)3184(Top 21%)3184(Top 141%)
15K9.32 mi3.11 mi3420+1243241+1043241+1043189(Top 12%)3035(Top 20%)3035(Top 135%)
20K12.43 mi3.11 mi3301+1193138+1033138+1033040(Top 11%)2895(Top 19%)2895(Top 129%)
Half13.11 mi0.68 mi3255+463096+423096+422776(Top 10%)2660(Top 18%)2660(Top 118%)
25K15.53 mi2.42 mi3185+703033+633033+632980(Top 11%)2840(Top 19%)2840(Top 126%)
30K18.64 mi3.11 mi3041+1442898+1352898+1352766(Top 10%)2624(Top 17%)2624(Top 117%)
20M20.00 mi1.36 mi3021+202878+202878+203068(Top 12%)2882(Top 19%)2882(Top 128%)
21M21.00 mi1.00 mi2994+272850+282850+282837(Top 11%)2662(Top 18%)2662(Top 118%)
35K21.75 mi0.75 mi2978+162835+152835+153060(Top 11%)2862(Top 19%)2862(Top 127%)
23M23.00 mi1.25 mi2918+602776+592776+592589(Top 10%)2430(Top 16%)2430(Top 108%)
24M24.00 mi1.00 mi2873+452730+462730+462310(Top 9%)2161(Top 14%)2161(Top 96%)
40K24.85 mi0.85 mi2816+572677+532677+532455(Top 9%)2275(Top 15%)2275(Top 101%)
25.2M25.20 mi0.35 mi2822-62682-52682-53565(Top 13%)3193(Top 21%)3193(Top 142%)
Finish26.22 mi1.02 mi2789+332650+322650+322603(Top 10%)2389(Top 16%)2389(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21story building
+97ft-345ft

Overall

3189

Males

3035

M45-49

3035

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3347

Males

3184

M45-49

3184

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+67ft-78ft

Overall

3189

Males

3035

M45-49

3035

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3040

Males

2895

M45-49

2895

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2776

Males

2660

M45-49

2660

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2980

Males

2840

M45-49

2840

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2766

Males

2624

M45-49

2624

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3068

Males

2882

M45-49

2882

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2837

Males

2662

M45-49

2662

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3060

Males

2862

M45-49

2862

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2589

Males

2430

M45-49

2430

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2310

Males

2161

M45-49

2161

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2455

Males

2275

M45-49

2275

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3565

Males

3193

M45-49

3193

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2603

Males

2389

M45-49

2389

Passing Analysis

Category:
Athletes Passed
1450
Passed By
391
Net Change
+1059
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3848
5K → 10K39187+304#3848#3544
10K → 15K17349+124#3544#3420
15K → 20K14627+119#3420#3301
20K → Half504+46#3301#3255
Half → 25K9323+70#3255#3185
25K → 30K17026+144#3185#3041
30K → 20M5333+20#3041#3021
20M → 21M6033+27#3021#2994
21M → 35K3721+16#2994#2978
35K → 23M7818+60#2978#2918
23M → 24M6419+45#2918#2873
24M → 40K6811+57#2873#2816
40K → 25.2M1723-6#2816#2822
25.2M → Finish5017+33#2822#2789
TOTALS1450391+1059
📊

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