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BOSTON MARATHON 2023

Ignacio Sainz

Bib: 31275•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:25
Rank: #19594
Start → 5K
8:49/mi
27:25 split
10K· 6.21 mi
55:29
Rank: #20342 (-748)
5K → 10K
9:02/mi
28:04 split
15K· 9.32 mi
1:23:39
Rank: #20455 (-113)
10K → 15K
9:04/mi
28:10 split
20K· 12.43 mi
1:54:14
Rank: #21163 (-708)
15K → 20K
9:51/mi
30:35 split
Half· 13.11 mi
2:00:43
Rank: #21205 (-42)
20K → Half
9:30/mi
6:29 split
25K· 15.53 mi
2:25:13
Rank: #21439 (-234)
Half → 25K
10:06/mi
24:30 split
30K· 18.64 mi
2:58:37
Rank: #21699 (-260)
25K → 30K
10:45/mi
33:24 split
20M
3:13:15
Rank: #21771 (-72)
30K → 20M
10:46/mi
14:38 split
21M
3:25:12
Rank: #21851 (-80)
20M → 21M
11:57/mi
11:57 split
35K· 21.75 mi
3:32:46
Rank: #21848 (+3)
21M → 35K
10:07/mi
7:34 split
23M
3:45:38
Rank: #21777 (+71)
35K → 23M
10:17/mi
12:52 split
24M
3:55:56
Rank: #21780 (-3)
23M → 24M
10:18/mi
10:18 split
40K· 24.85 mi
4:05:17
Rank: #21783 (-3)
24M → 40K
10:56/mi
9:21 split
25.2M
4:09:24
Rank: #21793 (-10)
40K → 25.2M
11:56/mi
4:07 split
Finish· 26.22 mi
4:20:28
Rank: #21883 (-90)
25.2M → Finish
10:52/mi
11:04 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:43
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:19:45
Pace10:40 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0427:258:4927:25
8:49
-
10K
6.21 mi12:15:0855:298:5628:04
9:02
+0:13
15K
9.32 mi12:43:181:23:398:5828:10
9:04
+0:02
20K
12.43 mi13:13:531:54:149:1230:35
9:51
+0:47
Half
13.11 mi13:20:222:00:439:126:29
9:30
-0:21
25K
15.53 mi13:44:522:25:139:2124:30
10:06
+0:36
30K
18.64 mi14:18:162:58:379:3533:24
10:45
+0:39
20M
20.00 mi14:32:543:13:159:4014:38
10:46
+0:01
21M
21.00 mi14:44:513:25:129:4611:57
11:57
+1:11
35K
21.75 mi14:52:253:32:469:477:34
10:07
-1:50
23M
23.00 mi15:05:173:45:389:4912:52
10:17
+0:10
24M
24.00 mi15:15:353:55:569:5010:18
10:18
+0:01
40K
24.85 mi15:24:564:05:179:529:21
10:56
+0:38
25.2M
25.20 mi15:29:034:09:249:544:07
11:56
+1:00
Finish
26.22 mi15:40:074:20:289:5611:04
10:52
-1:04

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

8:49 /mi

Average Pace

9:56 /mi

Slowest Pace

11:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:08

35% of race

Time at Steady Pace

1:25:49

33% of race

Time at Slower Pace

1:24:31

32% of race

Average Pace: 9:56 /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 mi11:47:0427:258:4927:25
8:49
#19594
10K
6.21 mi12:15:0855:298:5628:04
9:02
#20342
15K
9.32 mi12:43:181:23:398:5828:10
9:04
#20455
20K
12.43 mi13:13:531:54:149:1230:35
9:51
#21163
Half
13.11 mi13:20:222:00:439:126:29
9:30
#21205
25K
15.53 mi13:44:522:25:139:2124:30
10:06
#21439
30K
18.64 mi14:18:162:58:379:3533:24
10:45
#21699
20M
20.00 mi14:32:543:13:159:4014:38
10:46
#21771
21M
21.00 mi14:44:513:25:129:4611:57
11:57
#21851
35K
21.75 mi14:52:253:32:469:477:34
10:07
#21848
23M
23.00 mi15:05:173:45:389:4912:52
10:17
#21777
24M
24.00 mi15:15:353:55:569:5010:18
10:18
#21780
40K
24.85 mi15:24:564:05:179:529:21
10:56
#21783
25.2M
25.20 mi15:29:034:09:249:544:07
11:56
#21793
Finish
26.22 mi15:40:074:20:289:5611:04
10:52
#21883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi19594120031200320790(Top 78%)12654(Top 83%)12654(Top 562%)
10K6.21 mi3.10 mi20342-74812378-37512378-37521010(Top 79%)12719(Top 84%)12719(Top 565%)
15K9.32 mi3.11 mi20455-11312443-6512443-6520790(Top 78%)12654(Top 83%)12654(Top 562%)
20K12.43 mi3.11 mi21163-70812788-34512788-34522503(Top 85%)13396(Top 88%)13396(Top 595%)
Half13.11 mi0.68 mi21205-4212810-2212810-2222102(Top 83%)13242(Top 87%)13242(Top 588%)
25K15.53 mi2.42 mi21439-23412909-9912909-9922434(Top 84%)13332(Top 88%)13332(Top 592%)
30K18.64 mi3.11 mi21699-26013011-10213011-10222697(Top 85%)13378(Top 88%)13378(Top 594%)
20M20.00 mi1.36 mi21771-7213031-2013031-2022281(Top 84%)13129(Top 87%)13129(Top 583%)
21M21.00 mi1.00 mi21851-8013060-2913060-2922669(Top 85%)13275(Top 87%)13275(Top 589%)
35K21.75 mi0.75 mi21848+313046+1413046+1421576(Top 81%)12743(Top 84%)12743(Top 566%)
23M23.00 mi1.25 mi21777+7112998+4812998+4820777(Top 78%)12362(Top 81%)12362(Top 549%)
24M24.00 mi1.00 mi21780-312993+512993+521556(Top 81%)12660(Top 83%)12660(Top 562%)
40K24.85 mi0.85 mi21783-312981+1212981+1222212(Top 83%)12945(Top 85%)12945(Top 575%)
25.2M25.20 mi0.35 mi21793-1012983-212983-222358(Top 84%)13015(Top 86%)13015(Top 578%)
Finish26.22 mi1.02 mi21883-9013014-3113014-3123711(Top 89%)13675(Top 90%)13675(Top 607%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20790

Males

12654

M45-49

12654

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

21010

Males

12719

M45-49

12719

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20790

Males

12654

M45-49

12654

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22503

Males

13396

M45-49

13396

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22102

Males

13242

M45-49

13242

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22434

Males

13332

M45-49

13332

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22697

Males

13378

M45-49

13378

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22281

Males

13129

M45-49

13129

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

22669

Males

13275

M45-49

13275

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21576

Males

12743

M45-49

12743

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20777

Males

12362

M45-49

12362

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21556

Males

12660

M45-49

12660

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22212

Males

12945

M45-49

12945

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22358

Males

13015

M45-49

13015

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23711

Males

13675

M45-49

13675

Passing Analysis

Category:
Athletes Passed
665
Passed By
2954
Net Change
-2289
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19594
5K → 10K76824-748#19594#20342
10K → 15K142255-113#20342#20455
15K → 20K31739-708#20455#21163
20K → Half1052-42#21163#21205
Half → 25K43277-234#21205#21439
25K → 30K67327-260#21439#21699
30K → 20M38110-72#21699#21771
20M → 21M31111-80#21771#21851
21M → 35K2926+3#21851#21848
35K → 23M10029+71#21848#21777
23M → 24M3538-3#21777#21780
24M → 40K3639-3#21780#21783
40K → 25.2M1525-10#21783#21793
25.2M → Finish12102-90#21793#21883
TOTALS6652954-2289
📊

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