Boston Marathon logo
BOSTON MARATHON 2023

Hisashi Akiyama

Bib: 11418•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
Division (M45-49)
#0 / 2252
Top 30%
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
7:31/mi
23:20
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
45:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:12/mi
1:07:56
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:30:19
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:35:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:06/mi
1:52:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:09/mi
2:14:37
↑ 181↓ 1480.2%
20M
7:27/mi
2:24:44
↑ 64↓ 500.2%
21M
7:47/mi
2:32:31
↑ 106↓ 241.6%
35K· 21.75 mi
6:58/mi
2:37:44
↑ 17↓ 861.7%
23M
7:16/mi
2:46:50
↑ 23↓ 630.6%
24M
7:04/mi
2:53:54
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:00:12
↓ 200.3%
25.2M
8:01/mi
3:02:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
3:10:07
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:10
Pace7:16 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:57
Pace7:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0123:207:3123:20
7:31
-
10K
6.21 mi11:13:1445:337:2022:13
7:09
-0:22
15K
9.32 mi11:35:371:07:567:1722:23
7:12
+0:03
20K
12.43 mi11:58:001:30:197:1622:23
7:12
0:00
Half
13.11 mi12:02:511:35:107:164:51
7:07
-0:05
25K
15.53 mi12:20:051:52:247:1417:14
7:06
-0:01
30K
18.64 mi12:42:182:14:377:1322:13
7:09
+0:03
20M
20.00 mi12:52:252:24:447:1410:07
7:27
+0:18
21M
21.00 mi13:00:122:32:317:167:47
7:47
+0:20
35K
21.75 mi13:05:252:37:447:155:13
6:58
-0:49
23M
23.00 mi13:14:312:46:507:159:06
7:16
+0:18
24M
24.00 mi13:21:352:53:547:157:04
7:04
-0:12
40K
24.85 mi13:27:533:00:127:156:18
7:22
+0:18
25.2M
25.20 mi13:30:393:02:587:162:46
8:01
+0:39
Finish
26.22 mi13:37:483:10:077:157:09
7:01
-1:00

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

6:58 /mi

Average Pace

7:15 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:34

94% of race

Time at Steady Pace

10:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:51:0123:207:3123:20
7:31
#9703
10K
6.21 mi11:13:1445:337:2022:13
7:09
#8651
15K
9.32 mi11:35:371:07:567:1722:23
7:12
#8362
20K
12.43 mi11:58:001:30:197:1622:23
7:12
#8014
Half
13.11 mi12:02:511:35:107:164:51
7:07
#7974
25K
15.53 mi12:20:051:52:247:1417:14
7:06
#7618
30K
18.64 mi12:42:182:14:377:1322:13
7:09
#7099
20M
20.00 mi12:52:252:24:447:1410:07
7:27
#7031
21M
21.00 mi13:00:122:32:317:167:47
7:47
#6935
35K
21.75 mi13:05:252:37:447:155:13
6:58
#6859
23M
23.00 mi13:14:312:46:507:159:06
7:16
#6714
24M
24.00 mi13:21:352:53:547:157:04
7:04
#6606
40K
24.85 mi13:27:533:00:127:156:18
7:22
#6526
25.2M
25.20 mi13:30:393:02:587:162:46
8:01
#6509
Finish
26.22 mi13:37:483:10:077:157:09
7:01
#6446
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9703797779777811(Top 29%)6788(Top 45%)6788(Top 301%)
10K6.21 mi3.10 mi8651+10527366+6117366+6117761(Top 29%)6778(Top 45%)6778(Top 301%)
15K9.32 mi3.11 mi8362+2897183+1837183+1837811(Top 29%)6788(Top 45%)6788(Top 301%)
20K12.43 mi3.11 mi8014+3486943+2406943+2407121(Top 27%)6299(Top 42%)6299(Top 280%)
Half13.11 mi0.68 mi7974+406912+316912+317166(Top 27%)6335(Top 42%)6335(Top 281%)
25K15.53 mi2.42 mi7618+3566669+2436669+2436157(Top 23%)5559(Top 37%)5559(Top 247%)
30K18.64 mi3.11 mi7099+5196286+3836286+3835229(Top 20%)4781(Top 32%)4781(Top 212%)
20M20.00 mi1.36 mi7031+686230+566230+566420(Top 24%)5589(Top 37%)5589(Top 248%)
21M21.00 mi1.00 mi6935+966144+866144+866080(Top 23%)5249(Top 35%)5249(Top 233%)
35K21.75 mi0.75 mi6859+766081+636081+635208(Top 20%)4659(Top 31%)4659(Top 207%)
23M23.00 mi1.25 mi6714+1455953+1285953+1285149(Top 19%)4576(Top 30%)4576(Top 203%)
24M24.00 mi1.00 mi6606+1085858+955858+955026(Top 19%)4444(Top 29%)4444(Top 197%)
40K24.85 mi0.85 mi6526+805789+695789+695872(Top 22%)4938(Top 33%)4938(Top 219%)
25.2M25.20 mi0.35 mi6509+175764+255764+256577(Top 25%)5303(Top 35%)5303(Top 235%)
Finish26.22 mi1.02 mi6446+635713+515713+515301(Top 20%)4481(Top 30%)4481(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7811

Males

6788

M45-49

6788

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7761

Males

6778

M45-49

6778

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7811

Males

6788

M45-49

6788

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7121

Males

6299

M45-49

6299

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7166

Males

6335

M45-49

6335

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

6157

Males

5559

M45-49

5559

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5229

Males

4781

M45-49

4781

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6420

Males

5589

M45-49

5589

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6080

Males

5249

M45-49

5249

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5208

Males

4659

M45-49

4659

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5149

Males

4576

M45-49

4576

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5026

Males

4444

M45-49

4444

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5872

Males

4938

M45-49

4938

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6577

Males

5303

M45-49

5303

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5301

Males

4481

M45-49

4481

Passing Analysis

Category:
Athletes Passed
3448
Passed By
191
Net Change
+3257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9703
5K → 10K108432+1052#9703#8651
10K → 15K32233+289#8651#8362
15K → 20K36214+348#8362#8014
20K → Half422+40#8014#7974
Half → 25K3560+356#7974#7618
25K → 30K5212+519#7618#7099
30K → 20M9123+68#7099#7031
20M → 21M11721+96#7031#6935
21M → 35K793+76#6935#6859
35K → 23M15510+145#6859#6714
23M → 24M1124+108#6714#6606
24M → 40K9212+80#6606#6526
40K → 25.2M3316+17#6526#6509
25.2M → Finish8219+63#6509#6446
TOTALS3448191+3257
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing