Boston Marathon logo
BOSTON MARATHON 2024

Mami Kato

Bib: 20397•F

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:56
Rank: #16935
Start → 5K
25:56 | 8:21/mi
10K· 6.21 mi
52:18
Rank: #17024 (-89)
5K → 10K
26:22 | 8:29/mi
15K· 9.32 mi
1:19:14
Rank: #17099 (-75)
10K → 15K
26:56 | 8:40/mi
20K· 12.43 mi
1:46:38
Rank: #16883 (+216)
15K → 20K
27:24 | 8:49/mi
Half· 13.11 mi
1:52:33
Rank: #16865 (+18)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:14:40
Rank: #16684 (+181)
Half → 25K
22:07 | 9:07/mi
30K· 18.64 mi
2:45:05
Rank: #16674 (+10)
25K → 30K
30:25 | 9:47/mi
20M
2:59:15
Rank: #16821 (-147)
30K → 20M
14:10 | 10:25/mi
21M
3:10:22
Rank: #16840 (-19)
20M → 21M
11:07 | 11:07/mi
35K· 21.75 mi
3:17:38
Rank: #16810 (+30)
21M → 35K
7:16 | 9:43/mi
23M
3:31:18
Rank: #16955 (-145)
35K → 23M
13:40 | 10:55/mi
24M
3:41:46
Rank: #17021 (-66)
23M → 24M
10:28 | 10:28/mi
40K· 24.85 mi
3:51:05
Rank: #17047 (-26)
24M → 40K
9:19 | 10:54/mi
25.2M
3:54:59
Rank: #17002 (+45)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
4:04:40
Rank: #16959 (+43)
25.2M → Finish
9:41 | 9:30/mi

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 HalfFaster
Distance13.11 mi
Time1:52:33
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:12:07
Pace10:05 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3525:568:2125:56
8:21
-
10K
6.21 mi11:46:5752:188:2526:22
8:29
+0:08
15K
9.32 mi12:13:531:19:148:3026:56
8:40
+0:11
20K
12.43 mi12:41:171:46:388:3527:24
8:49
+0:09
Half
13.11 mi12:47:121:52:338:355:55
8:40
-0:09
25K
15.53 mi13:09:192:14:408:4022:07
9:07
+0:27
30K
18.64 mi13:39:442:45:058:5130:25
9:47
+0:40
20M
20.00 mi13:53:542:59:158:5814:10
10:25
+0:38
21M
21.00 mi14:05:013:10:229:0411:07
11:07
+0:42
35K
21.75 mi14:12:173:17:389:057:16
9:43
-1:24
23M
23.00 mi14:25:573:31:189:1113:40
10:55
+1:12
24M
24.00 mi14:36:253:41:469:1410:28
10:28
-0:27
40K
24.85 mi14:45:443:51:059:189:19
10:54
+0:26
25.2M
25.20 mi14:49:383:54:599:193:54
11:19
+0:25
Finish
26.22 mi14:59:194:04:409:209:41
9:30
-1:49

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

8:21 /mi

Average Pace

9:20 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:40

55% of race

Time at Steady Pace

47:22

19% of race

Time at Slower Pace

1:02:38

26% of race

Average Pace: 9:20 /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 mi11:20:3525:568:2125:56
8:21
#16935
10K
6.21 mi11:46:5752:188:2526:22
8:29
#17024
15K
9.32 mi12:13:531:19:148:3026:56
8:40
#17099
20K
12.43 mi12:41:171:46:388:3527:24
8:49
#16883
Half
13.11 mi12:47:121:52:338:355:55
8:40
#16865
25K
15.53 mi13:09:192:14:408:4022:07
9:07
#16684
30K
18.64 mi13:39:442:45:058:5130:25
9:47
#16674
20M
20.00 mi13:53:542:59:158:5814:10
10:25
#16821
21M
21.00 mi14:05:013:10:229:0411:07
11:07
#16840
35K
21.75 mi14:12:173:17:389:057:16
9:43
#16810
23M
23.00 mi14:25:573:31:189:1113:40
10:55
#16955
24M
24.00 mi14:36:253:41:469:1410:28
10:28
#17021
40K
24.85 mi14:45:443:51:059:189:19
10:54
#17047
25.2M
25.20 mi14:49:383:54:599:193:54
11:19
#17002
Finish
26.22 mi14:59:194:04:409:209:41
9:30
#16959
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi169356125612517333(Top 68%)6338(Top 58%)6338(Top 362%)
10K6.21 mi3.10 mi17024-896166-416166-4117201(Top 67%)6256(Top 57%)6256(Top 357%)
15K9.32 mi3.11 mi17099-756213-476213-4717333(Top 68%)6338(Top 58%)6338(Top 362%)
20K12.43 mi3.11 mi16883+2166097+1166097+11616506(Top 65%)5899(Top 54%)5899(Top 337%)
Half13.11 mi0.68 mi16865+186090+76090+716732(Top 65%)6069(Top 56%)6069(Top 346%)
25K15.53 mi2.42 mi16684+1816009+816009+8116108(Top 63%)5787(Top 53%)5787(Top 330%)
30K18.64 mi3.11 mi16674+106075-666075-6616609(Top 65%)6305(Top 58%)6305(Top 360%)
20M20.00 mi1.36 mi16821-1476190-1156190-11517781(Top 70%)7096(Top 65%)7096(Top 405%)
21M21.00 mi1.00 mi16840-196237-476237-4716645(Top 65%)6668(Top 61%)6668(Top 380%)
35K21.75 mi0.75 mi16810+306237623716256(Top 64%)6483(Top 59%)6483(Top 370%)
23M23.00 mi1.25 mi16955-1456351-1146351-11418187(Top 71%)7495(Top 69%)7495(Top 428%)
24M24.00 mi1.00 mi17021-666408-576408-5717759(Top 70%)7344(Top 67%)7344(Top 419%)
40K24.85 mi0.85 mi17047-266455-476455-4717817(Top 70%)7418(Top 68%)7418(Top 423%)
25.2M25.20 mi0.35 mi17002+456449+66449+615535(Top 61%)6307(Top 58%)6307(Top 360%)
Finish26.22 mi1.02 mi16959+436455-66455-616557(Top 65%)6791(Top 62%)6791(Top 387%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

17333

Females

6338

F45-49

6338

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17201

Females

6256

F45-49

6256

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

17333

Females

6338

F45-49

6338

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

16506

Females

5899

F45-49

5899

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

16732

Females

6069

F45-49

6069

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16108

Females

5787

F45-49

5787

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

16609

Females

6305

F45-49

6305

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

17781

Females

7096

F45-49

7096

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

16645

Females

6668

F45-49

6668

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16256

Females

6483

F45-49

6483

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18187

Females

7495

F45-49

7495

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

17759

Females

7344

F45-49

7344

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

17817

Females

7418

F45-49

7418

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

15535

Females

6307

F45-49

6307

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

16557

Females

6791

F45-49

6791

Passing Analysis

Category:
Athletes Passed
2014
Passed By
2038
Net Change
-24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16935
5K → 10K235324-89#16935#17024
10K → 15K214289-75#17024#17099
15K → 20K361145+216#17099#16883
20K → Half4325+18#16883#16865
Half → 25K306125+181#16865#16684
25K → 30K240230+10#16684#16674
30K → 20M77224-147#16674#16821
20M → 21M99118-19#16821#16840
21M → 35K8858+30#16840#16810
35K → 23M61206-145#16810#16955
23M → 24M55121-66#16955#17021
24M → 40K80106-26#17021#17047
40K → 25.2M6015+45#17047#17002
25.2M → Finish9552+43#17002#16959
TOTALS20142038-24
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing