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BOSTON MARATHON 2026

Izumi Smith

Bib: 24728 •F •Age: N/A

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F60-64)
#0 / 782
Top 36%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:02
3.11 mi
Rank: #19403
Start → 5K
26:02 | 8:23/mi
10K
52:06
6.21 mi
Rank: #19540 (-137)
5K → 10K
26:04 | 8:24/mi
15K
1:18:20
9.32 mi
Rank: #19610 (-70)
10K → 15K
26:14 | 8:27/mi
20K
1:45:20
12.43 mi
Rank: #19787 (-177)
15K → 20K
27:00 | 8:42/mi
HALF
1:51:11
13.11 mi
Rank: #19831 (-44)
20K → HALF
5:51 | 8:35/mi
25K
2:14:13
15.53 mi
Rank: #20513 (-682)
HALF → 25K
23:02 | 9:30/mi
30K
2:45:12
18.64 mi
Rank: #21120 (-607)
25K → 30K
30:59 | 9:59/mi
20M
2:58:47
20.00 mi
Rank: #21257 (-137)
30K → 20M
13:35 | 10:01/mi
21M
3:10:43
21.00 mi
Rank: #21639 (-382)
20M → 21M
11:56 | 11:56/mi
35K
3:17:46
21.75 mi
Rank: #21636 (+3)
21M → 35K
7:03 | 9:26/mi
23M
3:31:12
23.00 mi
Rank: #21861 (-225)
35K → 23M
13:26 | 10:45/mi
24M
3:40:45
24.00 mi
Rank: #21877 (-16)
23M → 24M
9:33 | 9:33/mi
40K
3:50:26
24.85 mi
Rank: #22044 (-167)
24M → 40K
9:41 | 11:20/mi
25.2M
3:53:55
25.20 mi
Rank: #22006 (+38)
40K → 25.2M
3:29 | 10:07/mi
FINISH
4:03:31
26.22 mi
Rank: #22011 (-5)
25.2M → FINISH
9:36 | 9:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:11
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:12:20
Pace10:06 /mi
📊Positive Split: 19.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5626:028:2326:02
8:23
-
10K
6.21 mi11:57:0052:068:2426:04
8:24
+0:01
15K
9.32 mi12:23:141:18:208:2526:14
8:27
+0:03
20K
12.43 mi12:50:141:45:208:2927:00
8:42
+0:15
HALF
13.11 mi12:56:051:51:118:295:51
8:35
-0:07
25K
15.53 mi13:19:072:14:138:3923:02
9:30
+0:55
30K
18.64 mi13:50:062:45:128:5230:59
9:59
+0:29
20M
20.00 mi14:03:412:58:478:5713:35
10:01
+0:02
21M
21.00 mi14:15:373:10:439:0511:56
11:56
+1:55
35K
21.75 mi14:22:403:17:469:067:03
9:26
-2:30
23M
23.00 mi14:36:063:31:129:1113:26
10:45
+1:19
24M
24.00 mi14:45:393:40:459:129:33
9:33
-1:12
40K
24.85 mi14:55:203:50:269:179:41
11:20
+1:47
25.2M
25.20 mi14:58:493:53:559:173:29
10:07
-1:13
FINISH
26.22 mi15:08:254:03:319:189:36
9:26
-0:41

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:23 /mi

Average Pace

9:18 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:51:11

46% of race

Time at Steady Pace

1:33:48

39% of race

Time at Slower Pace

38:32

16% of race

Average Pace: 9:17 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:30:5626:028:2326:02
8:23
#19403
10K
6.21 mi11:57:0052:068:2426:04
8:24
#19540
15K
9.32 mi12:23:141:18:208:2526:14
8:27
#19610
20K
12.43 mi12:50:141:45:208:2927:00
8:42
#19787
HALF
13.11 mi12:56:051:51:118:295:51
8:35
#19831
25K
15.53 mi13:19:072:14:138:3923:02
9:30
#20513
30K
18.64 mi13:50:062:45:128:5230:59
9:59
#21120
20M
20.00 mi14:03:412:58:478:5713:35
10:01
#21257
21M
21.00 mi14:15:373:10:439:0511:56
11:56
#21639
35K
21.75 mi14:22:403:17:469:067:03
9:26
#21636
23M
23.00 mi14:36:063:31:129:1113:26
10:45
#21861
24M
24.00 mi14:45:393:40:459:129:33
9:33
#21877
40K
24.85 mi14:55:203:50:269:179:41
11:20
#22044
25.2M
25.20 mi14:58:493:53:559:173:29
10:07
#22006
FINISH
26.22 mi15:08:254:03:319:189:36
9:26
#22011
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi194037312731219817(Top 68%)7487(Top 60%)7487(Top 957%)
10K6.21 mi3.10 mi19540-1377373-617373-6119727(Top 68%)7448(Top 59%)7448(Top 952%)
15K9.32 mi3.11 mi19610-707399-267399-2619817(Top 68%)7487(Top 60%)7487(Top 957%)
20K12.43 mi3.11 mi19787-1777507-1087507-10820400(Top 70%)7844(Top 62%)7844(Top 1003%)
HALF13.11 mi0.68 mi19831-447536-297536-2920784(Top 72%)8017(Top 64%)8017(Top 1025%)
25K15.53 mi2.42 mi20513-6827909-3737909-37323011(Top 79%)9206(Top 73%)9206(Top 1177%)
30K18.64 mi3.11 mi21120-6078236-3278236-32723053(Top 79%)9316(Top 74%)9316(Top 1191%)
20M20.00 mi1.36 mi21257-1378321-858321-8522575(Top 78%)9146(Top 73%)9146(Top 1170%)
21M21.00 mi1.00 mi21639-3828531-2108531-21024965(Top 86%)10481(Top 83%)10481(Top 1340%)
35K21.75 mi0.75 mi21636+38535-48535-421549(Top 74%)8724(Top 69%)8724(Top 1116%)
23M23.00 mi1.25 mi21861-2258674-1398674-13923899(Top 82%)9994(Top 79%)9994(Top 1278%)
24M24.00 mi1.00 mi21877-168695-218695-2121521(Top 74%)8808(Top 70%)8808(Top 1126%)
40K24.85 mi0.85 mi22044-1678785-908785-9024836(Top 86%)10553(Top 84%)10553(Top 1349%)
25.2M25.20 mi0.35 mi22006+388768+178768+1719821(Top 68%)7997(Top 64%)7997(Top 1023%)
FINISH26.22 mi1.02 mi22011-58786-188786-1822101(Top 76%)9121(Top 73%)9121(Top 1166%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21
+97ft-345ft

Overall

19817

Females

7487

F60-64

7487

5K→10K

3.1 - 6.2 mi

Top 68%
×5
+79ft-138ft

Overall

19727

Females

7448

F60-64

7448

10K→15K

6.2 - 9.3 mi

Top 68%
×3
+67ft-78ft

Overall

19817

Females

7487

F60-64

7487

15K→20K

9.3 - 12.4 mi

Top 70%
×5
+106ft-86ft

Overall

20400

Females

7844

F60-64

7844

20K→HALF

12.4 - 13.1 mi

Top 72%
×2
+19ft-37ft

Overall

20784

Females

8017

F60-64

8017

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

23011

Females

9206

F60-64

9206

25K→30K

15.5 - 18.6 mi

Top 79%
×9
+181ft-148ft

Overall

23053

Females

9316

F60-64

9316

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22575

Females

9146

F60-64

9146

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

24965

Females

10481

F60-64

10481

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21549

Females

8724

F60-64

8724

35K→23M

21.8 - 23.0 mi

Top 82%
×5
+23ft-63ft

Overall

23899

Females

9994

F60-64

9994

23M→24M

23.0 - 24.0 mi

Top 74%
×6
+12ft-82ft

Overall

21521

Females

8808

F60-64

8808

24M→40K

24.0 - 24.9 mi

Top 86%
×1
+6ft-20ft

Overall

24836

Females

10553

F60-64

10553

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19821

Females

7997

F60-64

7997

25.2M→FINISH

25.2 - 26.2 mi

Top 76%
×2
+22ft-21ft

Overall

22101

Females

9121

F60-64

9121

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
817
Passed By
1988
Net Change
-2608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19403
5K → 10K200200-137#19403#19540
10K → 15K148200-70#19540#19610
15K → 20K93200-177#19610#19787
20K → HALF1660-44#19787#19831
HALF → 25K27200-682#19831#20513
25K → 30K46200-607#20513#21120
30K → 20M59196-137#21120#21257
20M → 21M15200-382#21257#21639
21M → 35K4946+3#21639#21636
35K → 23M28200-225#21636#21861
23M → 24M4662-16#21861#21877
24M → 40K10177-167#21877#22044
40K → 25.2M457+38#22044#22006
25.2M → FINISH3540-5#22006#22011
TOTALS8171988-2608
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing