Tomoko Nagai

Bib: 21656F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 48%
Division (F55-59)
#0 / 876
Top 28%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:33
Rank: #18031
Start5K
8:33/mi
26:33 split
10K· 6.21 mi
53:14
Rank: #17900 (+131)
5K10K
8:35/mi
26:41 split
15K· 9.32 mi
1:20:37
Rank: #17935 (-35)
10K15K
8:49/mi
27:23 split
20K· 12.43 mi
1:49:07
Rank: #17930 (+5)
15K20K
9:10/mi
28:30 split
Half· 13.11 mi
1:55:01
Rank: #17848 (+82)
20KHalf
8:39/mi
5:54 split
25K· 15.53 mi
2:18:03
Rank: #17786 (+62)
Half25K
9:30/mi
23:02 split
30K· 18.64 mi
2:47:51
Rank: #17383 (+403)
25K30K
9:36/mi
29:48 split
20M
3:00:42
Rank: #17149 (+234)
30K20M
9:27/mi
12:51 split
21M
3:10:43
Rank: #16914 (+235)
20M21M
10:01/mi
10:01 split
35K· 21.75 mi
3:17:57
Rank: #16867 (+47)
21M35K
9:40/mi
7:14 split
23M
3:30:18
Rank: #16765 (+102)
35K23M
9:52/mi
12:21 split
24M
3:39:45
Rank: #16660 (+105)
23M24M
9:27/mi
9:27 split
40K· 24.85 mi
3:47:53
Rank: #16492 (+168)
24M40K
9:31/mi
8:08 split
25.2M
3:51:30
Rank: #16415 (+77)
40K25.2M
10:29/mi
3:37 split
Finish· 26.22 mi
4:00:19
Rank: #16283 (+132)
25.2MFinish
8:39/mi
8:49 split

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
Time1:55:01
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:05:18
Pace9:33 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4926:338:3326:33
8:33
-
10K
6.21 mi11:50:3053:148:3426:41
8:35
+0:02
15K
9.32 mi12:17:531:20:378:3927:23
8:49
+0:14
20K
12.43 mi12:46:231:49:078:4728:30
9:10
+0:21
Half
13.11 mi12:52:171:55:018:465:54
8:39
-0:31
25K
15.53 mi13:15:192:18:038:5323:02
9:30
+0:51
30K
18.64 mi13:45:072:47:519:0029:48
9:36
+0:06
20M
20.00 mi13:57:583:00:429:0212:51
9:27
-0:09
21M
21.00 mi14:07:593:10:439:0510:01
10:01
+0:34
35K
21.75 mi14:15:133:17:579:067:14
9:40
-0:21
23M
23.00 mi14:27:343:30:189:0912:21
9:52
+0:12
24M
24.00 mi14:37:013:39:459:099:27
9:27
-0:25
40K
24.85 mi14:45:093:47:539:108:08
9:31
+0:04
25.2M
25.20 mi14:48:463:51:309:113:37
10:29
+0:58
Finish
26.22 mi14:57:354:00:199:108:49
8:39
-1:50

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

8:33 /mi

Average Pace

9:10 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:50

52% of race

Time at Steady Pace

1:30:30

38% of race

Time at Slower Pace

25:59

11% of race

Average Pace: 9:10 /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 mi11:23:4926:338:3326:33
8:33
#18031
10K
6.21 mi11:50:3053:148:3426:41
8:35
#17900
15K
9.32 mi12:17:531:20:378:3927:23
8:49
#17935
20K
12.43 mi12:46:231:49:078:4728:30
9:10
#17930
Half
13.11 mi12:52:171:55:018:465:54
8:39
#17848
25K
15.53 mi13:15:192:18:038:5323:02
9:30
#17786
30K
18.64 mi13:45:072:47:519:0029:48
9:36
#17383
20M
20.00 mi13:57:583:00:429:0212:51
9:27
#17149
21M
21.00 mi14:07:593:10:439:0510:01
10:01
#16914
35K
21.75 mi14:15:133:17:579:067:14
9:40
#16867
23M
23.00 mi14:27:343:30:189:0912:21
9:52
#16765
24M
24.00 mi14:37:013:39:459:099:27
9:27
#16660
40K
24.85 mi14:45:093:47:539:108:08
9:31
#16492
25.2M
25.20 mi14:48:463:51:309:113:37
10:29
#16415
Finish
26.22 mi14:57:354:00:199:108:49
8:39
#16283
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi180316779677918030(Top 71%)6727(Top 62%)6727(Top 768%)
10K6.21 mi3.10 mi17900+1316678+1016678+10117788(Top 70%)6606(Top 60%)6606(Top 754%)
15K9.32 mi3.11 mi17935-356698-206698-2018030(Top 71%)6727(Top 62%)6727(Top 768%)
20K12.43 mi3.11 mi17930+56700-26700-218077(Top 71%)6744(Top 62%)6744(Top 770%)
Half13.11 mi0.68 mi17848+826663+376663+3716571(Top 65%)5973(Top 55%)5973(Top 682%)
25K15.53 mi2.42 mi17786+626652+116652+1117562(Top 69%)6570(Top 60%)6570(Top 750%)
30K18.64 mi3.11 mi17383+4036473+1796473+17915817(Top 62%)5865(Top 54%)5865(Top 670%)
20M20.00 mi1.36 mi17149+2346372+1016372+10114360(Top 56%)5332(Top 49%)5332(Top 609%)
21M21.00 mi1.00 mi16914+2356280+926280+9213045(Top 51%)4819(Top 44%)4819(Top 550%)
35K21.75 mi0.75 mi16867+476269+116269+1116102(Top 63%)6394(Top 59%)6394(Top 730%)
23M23.00 mi1.25 mi16765+1026240+296240+2914998(Top 59%)5916(Top 54%)5916(Top 675%)
24M24.00 mi1.00 mi16660+1056204+366204+3614303(Top 56%)5597(Top 51%)5597(Top 639%)
40K24.85 mi0.85 mi16492+1686137+676137+6713189(Top 52%)5146(Top 47%)5146(Top 587%)
25.2M25.20 mi0.35 mi16415+776116+216116+2112821(Top 50%)5023(Top 46%)5023(Top 573%)
Finish26.22 mi1.02 mi16283+1326073+436073+4312401(Top 49%)4677(Top 43%)4677(Top 534%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18030

Females

6727

F55-59

6727

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

17788

Females

6606

F55-59

6606

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18030

Females

6727

F55-59

6727

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18077

Females

6744

F55-59

6744

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

16571

Females

5973

F55-59

5973

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

17562

Females

6570

F55-59

6570

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

15817

Females

5865

F55-59

5865

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14360

Females

5332

F55-59

5332

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13045

Females

4819

F55-59

4819

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16102

Females

6394

F55-59

6394

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

14998

Females

5916

F55-59

5916

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14303

Females

5597

F55-59

5597

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13189

Females

5146

F55-59

5146

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

12821

Females

5023

F55-59

5023

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

12401

Females

4677

F55-59

4677

Passing Analysis

Category:
Athletes Passed
2884
Passed By
1136
Net Change
+1748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18031
5K10K339208+131#18031#17900
10K15K221256-35#17900#17935
15K20K246241+5#17935#17930
20KHalf9210+82#17930#17848
Half25K225163+62#17848#17786
25K30K48178+403#17786#17383
30K20M24713+234#17383#17149
20M21M24611+235#17149#16914
21M35K8740+47#16914#16867
35K23M16058+102#16867#16765
23M24M12318+105#16765#16660
24M40K18719+168#16660#16492
40K25.2M858+77#16492#16415
25.2MFinish14513+132#16415#16283
TOTALS28841136+1748
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing