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BOSTON MARATHON 2023

Takeshi Iijima

Bib: 15442•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 16%
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
7:38/mi
23:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:40/mi
1:11:22
↑ 67↓ 78
20K· 12.43 mi
8:04/mi
1:36:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:41:53
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:00:59
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:26:29
↑ 181↓ 1480.2%
20M
8:15/mi
2:37:41
↑ 64↓ 500.2%
21M
9:00/mi
2:46:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:57/mi
2:52:38
↑ 17↓ 861.7%
23M
8:25/mi
3:03:10
↑ 23↓ 630.6%
24M
8:06/mi
3:11:16
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:18:21
↓ 200.3%
25.2M
9:02/mi
3:21:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:29:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:53
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2923:437:3823:43
7:38
-
10K
6.21 mi11:17:1947:337:3923:50
7:40
+0:02
15K
9.32 mi11:41:081:11:227:3923:49
7:40
0:00
20K
12.43 mi12:06:131:36:277:4625:05
8:04
+0:24
Half
13.11 mi12:11:391:41:537:465:26
7:58
-0:06
25K
15.53 mi12:30:452:00:597:4719:06
7:53
-0:05
30K
18.64 mi12:56:152:26:297:5125:30
8:12
+0:19
20M
20.00 mi13:07:272:37:417:5311:12
8:15
+0:03
21M
21.00 mi13:16:272:46:417:569:00
9:00
+0:45
35K
21.75 mi13:22:242:52:387:565:57
7:57
-1:03
23M
23.00 mi13:32:563:03:107:5810:32
8:25
+0:28
24M
24.00 mi13:41:023:11:167:588:06
8:06
-0:19
40K
24.85 mi13:48:073:18:217:597:05
8:17
+0:11
25.2M
25.20 mi13:51:143:21:288:003:07
9:02
+0:45
Finish
26.22 mi13:59:363:29:508:018:22
8:13
-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

7:38 /mi

Average Pace

8:01 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:11

89% of race

Time at Steady Pace

19:32

9% of race

Time at Slower Pace

3:07

1% of race

Average Pace: 8:00 /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 mi10:53:2923:437:3823:43
7:38
#10844
10K
6.21 mi11:17:1947:337:3923:50
7:40
#11363
15K
9.32 mi11:41:081:11:227:3923:49
7:40
#11418
20K
12.43 mi12:06:131:36:277:4625:05
8:04
#12048
Half
13.11 mi12:11:391:41:537:465:26
7:58
#12141
25K
15.53 mi12:30:452:00:597:4719:06
7:53
#12080
30K
18.64 mi12:56:152:26:297:5125:30
8:12
#12101
20M
20.00 mi13:07:272:37:417:5311:12
8:15
#12082
21M
21.00 mi13:16:272:46:417:569:00
9:00
#12153
35K
21.75 mi13:22:242:52:387:565:57
7:57
#12140
23M
23.00 mi13:32:563:03:107:5810:32
8:25
#12167
24M
24.00 mi13:41:023:11:167:588:06
8:06
#12154
40K
24.85 mi13:48:073:18:217:597:05
8:17
#12125
25.2M
25.20 mi13:51:143:21:288:003:07
9:02
#12125
Finish
26.22 mi13:59:363:29:508:018:22
8:13
#12203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi108448586858611539(Top 43%)8872(Top 58%)8872(Top 799%)
10K6.21 mi3.10 mi11363-5198823-2378823-23711982(Top 45%)9103(Top 60%)9103(Top 820%)
15K9.32 mi3.11 mi11418-558846-238846-2311539(Top 43%)8872(Top 58%)8872(Top 799%)
20K12.43 mi3.11 mi12048-6309093-2479093-24714027(Top 53%)9882(Top 65%)9882(Top 890%)
Half13.11 mi0.68 mi12141-939124-319124-3114002(Top 53%)9885(Top 65%)9885(Top 891%)
25K15.53 mi2.42 mi12080+619078+469078+4611727(Top 44%)8801(Top 58%)8801(Top 793%)
30K18.64 mi3.11 mi12101-219053+259053+2512386(Top 47%)8966(Top 59%)8966(Top 808%)
20M20.00 mi1.36 mi12082+199017+369017+3611947(Top 45%)8687(Top 57%)8687(Top 783%)
21M21.00 mi1.00 mi12153-719038-219038-2113386(Top 50%)9217(Top 61%)9217(Top 830%)
35K21.75 mi0.75 mi12140+139011+279011+2711754(Top 44%)8454(Top 56%)8454(Top 762%)
23M23.00 mi1.25 mi12167-279000+119000+1112640(Top 47%)8749(Top 58%)8749(Top 788%)
24M24.00 mi1.00 mi12154+138973+278973+2711919(Top 45%)8360(Top 55%)8360(Top 753%)
40K24.85 mi0.85 mi12125+298936+378936+3711893(Top 45%)8272(Top 55%)8272(Top 745%)
25.2M25.20 mi0.35 mi121258932+48932+412680(Top 48%)8593(Top 57%)8593(Top 774%)
Finish26.22 mi1.02 mi12203-788950-188950-1813471(Top 51%)9003(Top 59%)9003(Top 811%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11539

Males

8872

M60-64

8872

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11982

Males

9103

M60-64

9103

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11539

Males

8872

M60-64

8872

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14027

Males

9882

M60-64

9882

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14002

Males

9885

M60-64

9885

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11727

Males

8801

M60-64

8801

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12386

Males

8966

M60-64

8966

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11947

Males

8687

M60-64

8687

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13386

Males

9217

M60-64

9217

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11754

Males

8454

M60-64

8454

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12640

Males

8749

M60-64

8749

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11919

Males

8360

M60-64

8360

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11893

Males

8272

M60-64

8272

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12680

Males

8593

M60-64

8593

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13471

Males

9003

M60-64

9003

Passing Analysis

Category:
Athletes Passed
1209
Passed By
2568
Net Change
-1359
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10844
5K → 10K124643-519#10844#11363
10K → 15K160215-55#11363#11418
15K → 20K38668-630#11418#12048
20K → Half598-93#12048#12141
Half → 25K15695+61#12141#12080
25K → 30K190211-21#12080#12101
30K → 20M11495+19#12101#12082
20M → 21M62133-71#12082#12153
21M → 35K5239+13#12153#12140
35K → 23M79106-27#12140#12167
23M → 24M6956+13#12167#12154
24M → 40K7950+29#12154#12125
40K → 25.2M29290#12125#12125
25.2M → Finish52130-78#12125#12203
TOTALS12092568-1359
📊

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