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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Mary Lassey

Bib: 29151 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
34:18
3.11 mi
Rank: #28071
Start → 5K
34:18 | 11:03/mi
10K
1:08:55
6.21 mi
Rank: #27980 (+91)
5K → 10K
34:37 | 11:09/mi
15K
1:44:11
9.32 mi
Rank: #27939 (+41)
10K → 15K
35:16 | 11:22/mi
20K
2:18:31
12.43 mi
Rank: #27715 (+224)
15K → 20K
34:20 | 11:04/mi
HALF
2:25:59
13.11 mi
Rank: #27688 (+27)
20K → HALF
7:28 | 10:58/mi
25K
2:53:16
15.53 mi
Rank: #27511 (+177)
HALF → 25K
27:17 | 11:15/mi
30K
3:30:57
18.64 mi
Rank: #27428 (+83)
25K → 30K
37:41 | 12:08/mi
20M
3:46:41
20.00 mi
Rank: #27316 (+112)
30K → 20M
15:44 | 11:35/mi
21M
3:59:06
21.00 mi
Rank: #27253 (+63)
20M → 21M
12:25 | 12:25/mi
35K
4:07:38
21.75 mi
Rank: #27218 (+35)
21M → 35K
8:32 | 11:25/mi
23M
4:21:34
23.00 mi
Rank: #27117 (+101)
35K → 23M
13:56 | 11:09/mi
24M
4:32:47
24.00 mi
Rank: #27080 (+37)
23M → 24M
11:13 | 11:13/mi
40K
4:42:43
24.85 mi
Rank: #27019 (+61)
24M → 40K
9:56 | 11:38/mi
25.2M
4:46:50
25.20 mi
Rank: #26985 (+34)
40K → 25.2M
4:07 | 11:57/mi
FINISH
4:56:33
26.22 mi
Rank: #26897 (+88)
25.2M → FINISH
9:43 | 9:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:25:59
Pace11:09 /mi
2nd Half
Distance13.11 mi
Time2:30:34
Pace11:30 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:5234:1811:0334:18
11:03
-
10K
6.21 mi12:34:291:08:5511:0634:37
11:09
+0:06
15K
9.32 mi13:09:451:44:1111:1135:16
11:22
+0:13
20K
12.43 mi13:44:052:18:3111:0934:20
11:04
-0:18
HALF
13.11 mi13:51:332:25:5911:097:28
10:58
-0:06
25K
15.53 mi14:18:502:53:1611:1027:17
11:15
+0:17
30K
18.64 mi14:56:313:30:5711:1937:41
12:08
+0:53
20M
20.00 mi15:12:153:46:4111:2115:44
11:35
-0:33
21M
21.00 mi15:24:403:59:0611:2412:25
12:25
+0:50
35K
21.75 mi15:33:124:07:3811:248:32
11:25
-1:00
23M
23.00 mi15:47:084:21:3411:2313:56
11:09
-0:16
24M
24.00 mi15:58:214:32:4711:2211:13
11:13
+0:04
40K
24.85 mi16:08:174:42:4311:239:56
11:38
+0:25
25.2M
25.20 mi16:12:244:46:5011:234:07
11:57
+0:19
FINISH
26.22 mi16:22:074:56:3311:209:43
9:33
-2:24

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

9:33 /mi

Average Pace

11:19 /mi

Slowest Pace

12:25 /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

9:43

3% of race

Time at Steady Pace

3:26:57

70% of race

Time at Slower Pace

1:19:53

27% of race

Average Pace: 11:19 /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 mi11:59:5234:1811:0334:18
11:03
#28071
10K
6.21 mi12:34:291:08:5511:0634:37
11:09
#27980
15K
9.32 mi13:09:451:44:1111:1135:16
11:22
#27939
20K
12.43 mi13:44:052:18:3111:0934:20
11:04
#27715
HALF
13.11 mi13:51:332:25:5911:097:28
10:58
#27688
25K
15.53 mi14:18:502:53:1611:1027:17
11:15
#27511
30K
18.64 mi14:56:313:30:5711:1937:41
12:08
#27428
20M
20.00 mi15:12:153:46:4111:2115:44
11:35
#27316
21M
21.00 mi15:24:403:59:0611:2412:25
12:25
#27253
35K
21.75 mi15:33:124:07:3811:248:32
11:25
#27218
23M
23.00 mi15:47:084:21:3411:2313:56
11:09
#27117
24M
24.00 mi15:58:214:32:4711:2211:13
11:13
#27080
40K
24.85 mi16:08:174:42:4311:239:56
11:38
#27019
25.2M
25.20 mi16:12:244:46:5011:234:07
11:57
#26985
FINISH
26.22 mi16:22:074:56:3311:209:43
9:33
#26897
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28071119311193127811(Top 96%)11797(Top 94%)11797(Top 206%)
10K6.21 mi3.10 mi27980+9111877+5411877+5427848(Top 96%)11821(Top 94%)11821(Top 207%)
15K9.32 mi3.11 mi27939+4111854+2311854+2327811(Top 96%)11797(Top 94%)11797(Top 206%)
20K12.43 mi3.11 mi27715+22411727+12711727+12727019(Top 93%)11323(Top 90%)11323(Top 198%)
HALF13.11 mi0.68 mi27688+2711714+1311714+1327318(Top 94%)11543(Top 92%)11543(Top 202%)
25K15.53 mi2.42 mi27511+17711614+10011614+10026701(Top 92%)11197(Top 89%)11197(Top 196%)
30K18.64 mi3.11 mi27428+8311581+3311581+3326946(Top 93%)11429(Top 91%)11429(Top 200%)
20M20.00 mi1.36 mi27316+11211525+5611525+5625829(Top 89%)10895(Top 87%)10895(Top 191%)
21M21.00 mi1.00 mi27253+6311498+2711498+2725667(Top 88%)10856(Top 86%)10856(Top 190%)
35K21.75 mi0.75 mi27218+3511481+1711481+1725924(Top 89%)10996(Top 87%)10996(Top 192%)
23M23.00 mi1.25 mi27117+10111434+4711434+4724777(Top 85%)10466(Top 83%)10466(Top 183%)
24M24.00 mi1.00 mi27080+3711422+1211422+1225494(Top 88%)10848(Top 86%)10848(Top 190%)
40K24.85 mi0.85 mi27019+6111391+3111391+3125305(Top 87%)10796(Top 86%)10796(Top 189%)
25.2M25.20 mi0.35 mi26985+3411374+1711374+1724374(Top 84%)10332(Top 82%)10332(Top 181%)
FINISH26.22 mi1.02 mi26897+8811336+3811336+3822490(Top 77%)9340(Top 74%)9340(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21
+97ft-345ft

Overall

27811

Females

11797

F18-39

11797

5K→10K

3.1 - 6.2 mi

Top 96%
×5
+79ft-138ft

Overall

27848

Females

11821

F18-39

11821

10K→15K

6.2 - 9.3 mi

Top 96%
×3
+67ft-78ft

Overall

27811

Females

11797

F18-39

11797

15K→20K

9.3 - 12.4 mi

Top 93%
×5
+106ft-86ft

Overall

27019

Females

11323

F18-39

11323

20K→HALF

12.4 - 13.1 mi

Top 94%
×2
+19ft-37ft

Overall

27318

Females

11543

F18-39

11543

HALF→25K

13.1 - 15.5 mi

Top 92%
×4
+66ft-88ft

Overall

26701

Females

11197

F18-39

11197

25K→30K

15.5 - 18.6 mi

Top 93%
×9
+181ft-148ft

Overall

26946

Females

11429

F18-39

11429

30K→20M

18.6 - 20.0 mi

Top 89%
×5
+64ft-50ft

Overall

25829

Females

10895

F18-39

10895

20M→21M

20.0 - 21.0 mi

Top 88%
×8
+106ft-24ft

Overall

25667

Females

10856

F18-39

10856

21M→35K

21.0 - 21.8 mi

Top 89%
×7
+17ft-86ft

Overall

25924

Females

10996

F18-39

10996

35K→23M

21.8 - 23.0 mi

Top 85%
×5
+23ft-63ft

Overall

24777

Females

10466

F18-39

10466

23M→24M

23.0 - 24.0 mi

Top 88%
×6
+12ft-82ft

Overall

25494

Females

10848

F18-39

10848

24M→40K

24.0 - 24.9 mi

Top 87%
×1
+6ft-20ft

Overall

25305

Females

10796

F18-39

10796

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24374

Females

10332

F18-39

10332

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22490

Females

9340

F18-39

9340

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1422*
Passed By
248
Net Change
+1174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28071
5K → 10K17382+91#28071#27980
10K → 15K11069+41#27980#27939
15K → 20K233*9+224#27939#27715
20K → HALF369+27#27715#27688
HALF → 25K1858+177#27688#27511
25K → 30K11835+83#27511#27428
30K → 20M1197+112#27428#27316
20M → 21M7310+63#27316#27253
21M → 35K438+35#27253#27218
35K → 23M1032+101#27218#27117
23M → 24M436+37#27117#27080
24M → 40K632+61#27080#27019
40K → 25.2M351+34#27019#26985
25.2M → FINISH880+88#26985#26897
TOTALS1422*248+1174

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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

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OTQ

Olympic Trials Qualifying analysis available

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