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BOSTON MARATHON 2023

Daniel Ibarra

Bib: 31630•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
8:54/mi
27:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:48/mi
54:59
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:22:53
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:50:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:27/mi
1:56:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:17:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:55/mi
2:45:18
↑ 181↓ 1480.2%
20M
8:40/mi
2:57:04
↑ 64↓ 500.2%
21M
9:27/mi
3:06:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:15/mi
3:12:41
↑ 17↓ 861.7%
23M
8:30/mi
3:23:20
↑ 23↓ 630.6%
24M
8:21/mi
3:31:41
↓ 821.3%
40K· 24.85 mi
8:38/mi
3:39:04
↓ 200.3%
25.2M
9:17/mi
3:42:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:50:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:56:06
Pace8:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:54:40
Pace8:45 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4527:388:5427:38
8:54
-
10K
6.21 mi12:16:0654:598:5127:21
8:48
-0:06
15K
9.32 mi12:44:001:22:538:5427:54
8:59
+0:11
20K
12.43 mi13:11:271:50:208:5327:27
8:50
-0:09
Half
13.11 mi13:17:131:56:068:515:46
8:27
-0:23
25K
15.53 mi13:38:432:17:368:5121:30
8:52
+0:25
30K
18.64 mi14:06:252:45:188:5227:42
8:55
+0:03
20M
20.00 mi14:18:112:57:048:5111:46
8:40
-0:15
21M
21.00 mi14:27:383:06:318:539:27
9:27
+0:47
35K
21.75 mi14:33:483:12:418:526:10
8:15
-1:12
23M
23.00 mi14:44:273:23:208:5010:39
8:30
+0:15
24M
24.00 mi14:52:483:31:418:498:21
8:21
-0:09
40K
24.85 mi15:00:113:39:048:497:23
8:38
+0:17
25.2M
25.20 mi15:03:233:42:168:493:12
9:17
+0:39
Finish
26.22 mi15:11:533:50:468:488:30
8:20
-0:57

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

8:15 /mi

Average Pace

8:48 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:07

95% of race

Time at Steady Pace

12:39

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:48:4527:388:5427:38
8:54
#19953
10K
6.21 mi12:16:0654:598:5127:21
8:48
#19928
15K
9.32 mi12:44:001:22:538:5427:54
8:59
#20082
20K
12.43 mi13:11:271:50:208:5327:27
8:50
#19739
Half
13.11 mi13:17:131:56:068:515:46
8:27
#19631
25K
15.53 mi13:38:432:17:368:5121:30
8:52
#19390
30K
18.64 mi14:06:252:45:188:5227:42
8:55
#18931
20M
20.00 mi14:18:112:57:048:5111:46
8:40
#18627
21M
21.00 mi14:27:383:06:318:539:27
9:27
#18431
35K
21.75 mi14:33:483:12:418:526:10
8:15
#18268
23M
23.00 mi14:44:273:23:208:5010:39
8:30
#18006
24M
24.00 mi14:52:483:31:418:498:21
8:21
#17835
40K
24.85 mi15:00:113:39:048:497:23
8:38
#17699
25.2M
25.20 mi15:03:233:42:168:493:12
9:17
#17641
Finish
26.22 mi15:11:533:50:468:488:30
8:20
#17511
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19953121481214820402(Top 77%)12480(Top 82%)12480(Top 608%)
10K6.21 mi3.10 mi19928+2512181-3312181-3319930(Top 75%)12252(Top 81%)12252(Top 597%)
15K9.32 mi3.11 mi20082-15412276-9512276-9520402(Top 77%)12480(Top 82%)12480(Top 608%)
20K12.43 mi3.11 mi19739+34312156+12012156+12018846(Top 71%)11828(Top 78%)11828(Top 576%)
Half13.11 mi0.68 mi19631+10812108+4812108+4817425(Top 65%)11259(Top 74%)11259(Top 549%)
25K15.53 mi2.42 mi19390+24112016+9212016+9218301(Top 69%)11551(Top 76%)11551(Top 563%)
30K18.64 mi3.11 mi18931+45911812+20411812+20416733(Top 63%)10801(Top 71%)10801(Top 526%)
20M20.00 mi1.36 mi18627+30411659+15311659+15314618(Top 55%)9830(Top 65%)9830(Top 479%)
21M21.00 mi1.00 mi18431+19611565+9411565+9415718(Top 59%)10236(Top 67%)10236(Top 499%)
35K21.75 mi0.75 mi18268+16311488+7711488+7713743(Top 52%)9316(Top 61%)9316(Top 454%)
23M23.00 mi1.25 mi18006+26211373+11511373+11513268(Top 50%)9039(Top 60%)9039(Top 440%)
24M24.00 mi1.00 mi17835+17111289+8411289+8413533(Top 51%)9109(Top 60%)9109(Top 444%)
40K24.85 mi0.85 mi17699+13611221+6811221+6814158(Top 53%)9316(Top 61%)9316(Top 454%)
25.2M25.20 mi0.35 mi17641+5811189+3211189+3214069(Top 53%)9287(Top 61%)9287(Top 453%)
Finish26.22 mi1.02 mi17511+13011120+6911120+6914340(Top 54%)9412(Top 62%)9412(Top 459%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20402

Males

12480

M50-54

12480

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19930

Males

12252

M50-54

12252

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20402

Males

12480

M50-54

12480

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18846

Males

11828

M50-54

11828

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17425

Males

11259

M50-54

11259

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18301

Males

11551

M50-54

11551

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16733

Males

10801

M50-54

10801

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14618

Males

9830

M50-54

9830

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15718

Males

10236

M50-54

10236

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13743

Males

9316

M50-54

9316

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13268

Males

9039

M50-54

9039

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13533

Males

9109

M50-54

9109

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14158

Males

9316

M50-54

9316

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14069

Males

9287

M50-54

9287

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14340

Males

9412

M50-54

9412

Passing Analysis

Category:
Athletes Passed
3135
Passed By
693
Net Change
+2442
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19953
5K → 10K315290+25#19953#19928
10K → 15K125279-154#19928#20082
15K → 20K38138+343#20082#19739
20K → Half1124+108#19739#19631
Half → 25K26221+241#19631#19390
25K → 30K47718+459#19390#18931
30K → 20M3051+304#18931#18627
20M → 21M21115+196#18627#18431
21M → 35K1630+163#18431#18268
35K → 23M2653+262#18268#18006
23M → 24M1721+171#18006#17835
24M → 40K14610+136#17835#17699
40K → 25.2M613+58#17699#17641
25.2M → Finish14010+130#17641#17511
TOTALS3135693+2442
📊

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