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BOSTON MARATHON 2025

Tatsuki Ito

Bib: 4539•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:48
Rank: #7957
Start → 5K
21:48 | 7:01/mi
10K· 6.21 mi
43:53
Rank: #8362 (-405)
5K → 10K
22:05 | 7:06/mi
15K· 9.32 mi
1:06:19
Rank: #8610 (-248)
10K → 15K
22:26 | 7:13/mi
20K· 12.43 mi
1:28:55
Rank: #8587 (+23)
15K → 20K
22:36 | 7:16/mi
Half· 13.11 mi
1:33:51
Rank: #8627 (-40)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:51:39
Rank: #8572 (+55)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:16:03
Rank: #8817 (-245)
25K → 30K
24:24 | 7:51/mi
20M
2:27:04
Rank: #8985 (-168)
30K → 20M
11:01 | 8:06/mi
21M
2:35:57
Rank: #9206 (-221)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:41:25
Rank: #9110 (+96)
21M → 35K
5:28 | 7:18/mi
23M
2:51:35
Rank: #9144 (-34)
35K → 23M
10:10 | 8:07/mi
24M
2:59:50
Rank: #9324 (-180)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:07:29
Rank: #9602 (-278)
24M → 40K
7:39 | 8:57/mi
25.2M
3:11:06
Rank: #9800 (-198)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
3:20:09
Rank: #10197 (-397)
25.2M → Finish
9:03 | 8:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:51
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:46:18
Pace8:07 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0221:487:0121:48
7:01
-
10K
6.21 mi10:47:0743:537:0422:05
7:06
+0:05
15K
9.32 mi11:09:331:06:197:0722:26
7:13
+0:07
20K
12.43 mi11:32:091:28:557:0922:36
7:16
+0:03
Half
13.11 mi11:37:051:33:517:104:56
7:14
-0:02
25K
15.53 mi11:54:531:51:397:1117:48
7:20
+0:06
30K
18.64 mi12:19:172:16:037:1824:24
7:51
+0:31
20M
20.00 mi12:30:182:27:047:2111:01
8:06
+0:15
21M
21.00 mi12:39:112:35:577:268:53
8:53
+0:47
35K
21.75 mi12:44:392:41:257:255:28
7:18
-1:35
23M
23.00 mi12:54:492:51:357:2810:10
8:07
+0:49
24M
24.00 mi13:03:042:59:507:308:15
8:15
+0:08
40K
24.85 mi13:10:433:07:297:337:39
8:57
+0:42
25.2M
25.20 mi13:14:203:11:067:353:37
10:29
+1:32
Finish
26.22 mi13:23:233:20:097:389:03
8:53
-1:36

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

7:01 /mi

Average Pace

7:38 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:07

59% of race

Time at Steady Pace

53:50

27% of race

Time at Slower Pace

29:12

15% of race

Average Pace: 7:38 /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 mi10:25:0221:487:0121:48
7:01
#7957
10K
6.21 mi10:47:0743:537:0422:05
7:06
#8362
15K
9.32 mi11:09:331:06:197:0722:26
7:13
#8610
20K
12.43 mi11:32:091:28:557:0922:36
7:16
#8587
Half
13.11 mi11:37:051:33:517:104:56
7:14
#8627
25K
15.53 mi11:54:531:51:397:1117:48
7:20
#8572
30K
18.64 mi12:19:172:16:037:1824:24
7:51
#8817
20M
20.00 mi12:30:182:27:047:2111:01
8:06
#8985
21M
21.00 mi12:39:112:35:577:268:53
8:53
#9206
35K
21.75 mi12:44:392:41:257:255:28
7:18
#9110
23M
23.00 mi12:54:492:51:357:2810:10
8:07
#9144
24M
24.00 mi13:03:042:59:507:308:15
8:15
#9324
40K
24.85 mi13:10:433:07:297:337:39
8:57
#9602
25.2M
25.20 mi13:14:203:11:067:353:37
10:29
#9800
Finish
26.22 mi13:23:233:20:097:389:03
8:53
#10197
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7957697469749286(Top 33%)7704(Top 48%)7704(Top 137%)
10K6.21 mi3.10 mi8362-4057210-2367210-2368738(Top 31%)7441(Top 46%)7441(Top 132%)
15K9.32 mi3.11 mi8610-2487351-1417351-1419286(Top 33%)7704(Top 48%)7704(Top 137%)
20K12.43 mi3.11 mi8587+237318+337318+338828(Top 31%)7355(Top 46%)7355(Top 130%)
Half13.11 mi0.68 mi8627-407328-107328-109337(Top 33%)7680(Top 48%)7680(Top 136%)
25K15.53 mi2.42 mi8572+557283+457283+458676(Top 31%)7162(Top 44%)7162(Top 127%)
30K18.64 mi3.11 mi8817-2457365-827365-8210303(Top 36%)7839(Top 49%)7839(Top 139%)
20M20.00 mi1.36 mi8985-1687428-637428-6311126(Top 39%)8088(Top 50%)8088(Top 143%)
21M21.00 mi1.00 mi9206-2217517-897517-8912782(Top 45%)8723(Top 54%)8723(Top 155%)
35K21.75 mi0.75 mi9110+967438+797438+797296(Top 26%)5880(Top 37%)5880(Top 104%)
23M23.00 mi1.25 mi9144-347415+237415+2310854(Top 38%)7672(Top 48%)7672(Top 136%)
24M24.00 mi1.00 mi9324-1807490-757490-7512879(Top 45%)8583(Top 53%)8583(Top 152%)
40K24.85 mi0.85 mi9602-2787595-1057595-10515962(Top 56%)9888(Top 61%)9888(Top 175%)
25.2M25.20 mi0.35 mi9800-1987675-807675-8018893(Top 67%)11248(Top 70%)11248(Top 199%)
Finish26.22 mi1.02 mi10197-3977853-1787853-17818416(Top 65%)11065(Top 69%)11065(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9286

Males

7704

M18-39

7704

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8738

Males

7441

M18-39

7441

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9286

Males

7704

M18-39

7704

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8828

Males

7355

M18-39

7355

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9337

Males

7680

M18-39

7680

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8676

Males

7162

M18-39

7162

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10303

Males

7839

M18-39

7839

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11126

Males

8088

M18-39

8088

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12782

Males

8723

M18-39

8723

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7296

Males

5880

M18-39

5880

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10854

Males

7672

M18-39

7672

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12879

Males

8583

M18-39

8583

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15962

Males

9888

M18-39

9888

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18893

Males

11248

M18-39

11248

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18416

Males

11065

M18-39

11065

Passing Analysis

Category:
Athletes Passed
1068
Passed By
3306
Net Change
-2240
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7957
5K → 10K80485-405#7957#8362
10K → 15K89337-248#8362#8610
15K → 20K189166+23#8610#8587
20K → Half2262-40#8587#8627
Half → 25K159104+55#8627#8572
25K → 30K146391-245#8572#8817
30K → 20M58226-168#8817#8985
20M → 21M44265-221#8985#9206
21M → 35K1048+96#9206#9110
35K → 23M100134-34#9110#9144
23M → 24M36216-180#9144#9324
24M → 40K22300-278#9324#9602
40K → 25.2M5203-198#9602#9800
25.2M → Finish14409-397#9800#10197
TOTALS10683306-2240
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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