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BOSTON MARATHON 2024

Nao Terai

Bib: 15388•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 33%
Gender (Female)
#0 / 10924
Top 17%
Masters (Masters Women)
#0 / 6263
Top 7%
Division (F40-44)
#0 / 1613
Top 16%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
7:12/mi
22:21
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
45:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:08:15
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:31:52
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:36:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:55:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:21:06
↑ 181↓ 1480.2%
20M
8:28/mi
2:32:37
↑ 64↓ 500.2%
21M
9:14/mi
2:41:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
2:48:07
↑ 17↓ 861.7%
23M
8:27/mi
2:58:42
↑ 23↓ 630.6%
24M
8:16/mi
3:06:58
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:14:08
↓ 200.3%
25.2M
9:25/mi
3:17:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:25:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:52
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:48:50
Pace8:18 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0522:217:1222:21
7:12
-
10K
6.21 mi11:17:5845:147:1722:53
7:22
+0:10
15K
9.32 mi11:40:591:08:157:1923:01
7:25
+0:03
20K
12.43 mi12:04:361:31:527:2423:37
7:36
+0:11
Half
13.11 mi12:09:361:36:527:235:00
7:20
-0:16
25K
15.53 mi12:28:371:55:537:2819:01
7:51
+0:31
30K
18.64 mi12:53:502:21:067:3425:13
8:07
+0:16
20M
20.00 mi13:05:212:32:377:3811:31
8:28
+0:21
21M
21.00 mi13:14:352:41:517:429:14
9:14
+0:46
35K
21.75 mi13:20:512:48:077:446:16
8:23
-0:51
23M
23.00 mi13:31:262:58:427:4610:35
8:27
+0:04
24M
24.00 mi13:39:423:06:587:478:16
8:16
-0:11
40K
24.85 mi13:46:523:14:087:497:10
8:23
+0:07
25.2M
25.20 mi13:50:073:17:237:503:15
9:25
+1:02
Finish
26.22 mi13:58:263:25:427:518:19
8:10
-1:15

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

7:12 /mi

Average Pace

7:51 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:52

47% of race

Time at Steady Pace

1:36:21

47% of race

Time at Slower Pace

12:29

6% of race

Average Pace: 7:51 /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 mi10:55:0522:217:1222:21
7:12
#8391
10K
6.21 mi11:17:5845:147:1722:53
7:22
#8757
15K
9.32 mi11:40:591:08:157:1923:01
7:25
#8789
20K
12.43 mi12:04:361:31:527:2423:37
7:36
#8801
Half
13.11 mi12:09:361:36:527:235:00
7:20
#8742
25K
15.53 mi12:28:371:55:537:2819:01
7:51
#8791
30K
18.64 mi12:53:502:21:067:3425:13
8:07
#8618
20M
20.00 mi13:05:212:32:377:3811:31
8:28
#8633
21M
21.00 mi13:14:352:41:517:429:14
9:14
#8618
35K
21.75 mi13:20:512:48:077:446:16
8:23
#8624
23M
23.00 mi13:31:262:58:427:4610:35
8:27
#8513
24M
24.00 mi13:39:423:06:587:478:16
8:16
#8445
40K
24.85 mi13:46:523:14:087:497:10
8:23
#8368
25.2M
25.20 mi13:50:073:17:237:503:15
9:25
#8339
Finish
26.22 mi13:58:263:25:427:518:19
8:10
#8351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8391133413348963(Top 35%)1683(Top 15%)1683(Top 104%)
10K6.21 mi3.10 mi8757-3661516-1821516-1829188(Top 36%)1729(Top 16%)1729(Top 107%)
15K9.32 mi3.11 mi8789-321547-311547-318963(Top 35%)1683(Top 15%)1683(Top 104%)
20K12.43 mi3.11 mi8801-121580-331580-339104(Top 36%)1859(Top 17%)1859(Top 115%)
Half13.11 mi0.68 mi8742+591560+201560+207942(Top 31%)1350(Top 12%)1350(Top 84%)
25K15.53 mi2.42 mi8791-491619-591619-599210(Top 36%)2103(Top 19%)2103(Top 130%)
30K18.64 mi3.11 mi8618+1731640-211640-218541(Top 33%)1995(Top 18%)1995(Top 124%)
20M20.00 mi1.36 mi8633-151703-631703-639312(Top 36%)2609(Top 24%)2609(Top 162%)
21M21.00 mi1.00 mi8618+151755-521755-529644(Top 38%)3027(Top 28%)3027(Top 188%)
35K21.75 mi0.75 mi8624-61797-421797-4210014(Top 39%)3224(Top 30%)3224(Top 200%)
23M23.00 mi1.25 mi8513+1111813-161813-168216(Top 32%)2483(Top 23%)2483(Top 154%)
24M24.00 mi1.00 mi8445+681830-171830-178134(Top 32%)2544(Top 23%)2544(Top 158%)
40K24.85 mi0.85 mi8368+771844-141844-147773(Top 30%)2491(Top 23%)2491(Top 154%)
25.2M25.20 mi0.35 mi8339+291853-91853-98446(Top 33%)2854(Top 26%)2854(Top 177%)
Finish26.22 mi1.02 mi8351-121897-441897-449564(Top 37%)3300(Top 30%)3300(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

8963

Females

1683

F40-44

1683

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9188

Females

1729

F40-44

1729

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

8963

Females

1683

F40-44

1683

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9104

Females

1859

F40-44

1859

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

7942

Females

1350

F40-44

1350

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9210

Females

2103

F40-44

2103

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8541

Females

1995

F40-44

1995

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9312

Females

2609

F40-44

2609

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

9644

Females

3027

F40-44

3027

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10014

Females

3224

F40-44

3224

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8216

Females

2483

F40-44

2483

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8134

Females

2544

F40-44

2544

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7773

Females

2491

F40-44

2491

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8446

Females

2854

F40-44

2854

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9564

Females

3300

F40-44

3300

Passing Analysis

Category:
Athletes Passed
2004
Passed By
1964
Net Change
+40
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8391
5K → 10K126492-366#8391#8757
10K → 15K173205-32#8757#8789
15K → 20K198210-12#8789#8801
20K → Half7314+59#8801#8742
Half → 25K181230-49#8742#8791
25K → 30K357184+173#8791#8618
30K → 20M137152-15#8618#8633
20M → 21M121106+15#8633#8618
21M → 35K8086-6#8618#8624
35K → 23M17766+111#8624#8513
23M → 24M13264+68#8513#8445
24M → 40K12043+77#8445#8368
40K → 25.2M5829+29#8368#8339
25.2M → Finish7183-12#8339#8351
TOTALS20041964+40
📊

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