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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Yumi Dempsey

Bib: 23055 •F •Age: N/A

FL

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 44%
Masters (Masters Women)
#0 / 6862
Top 30%
Age Group (F50-54)
#0 / 1233
Top 24%
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
25:09
3.11 mi
Rank: #17589
Start → 5K
25:09 | 8:06/mi
10K
49:46
6.21 mi
Rank: #17153 (+436)
5K → 10K
24:37 | 7:56/mi
15K
1:14:25
9.32 mi
Rank: #16926 (+227)
10K → 15K
24:39 | 7:57/mi
20K
1:40:08
12.43 mi
Rank: #17246 (-320)
15K → 20K
25:43 | 8:17/mi
HALF
1:45:34
13.11 mi
Rank: #17223 (+23)
20K → HALF
5:26 | 7:59/mi
25K
2:05:19
15.53 mi
Rank: #17053 (+170)
HALF → 25K
19:45 | 8:09/mi
30K
2:31:38
18.64 mi
Rank: #16945 (+108)
25K → 30K
26:19 | 8:29/mi
20M
2:43:12
20.00 mi
Rank: #16877 (+68)
30K → 20M
11:34 | 8:31/mi
21M
2:51:57
21.00 mi
Rank: #16725 (+152)
20M → 21M
8:45 | 8:45/mi
35K
2:57:53
21.75 mi
Rank: #16596 (+129)
21M → 35K
5:56 | 7:56/mi
23M
3:08:06
23.00 mi
Rank: #16384 (+212)
35K → 23M
10:13 | 8:10/mi
24M
3:16:09
24.00 mi
Rank: #16265 (+119)
23M → 24M
8:03 | 8:03/mi
40K
3:23:03
24.85 mi
Rank: #16128 (+137)
24M → 40K
6:54 | 8:05/mi
25.2M
3:26:05
25.20 mi
Rank: #16076 (+52)
40K → 25.2M
3:02 | 8:48/mi
FINISH
3:34:04
26.22 mi
Rank: #15982 (+94)
25.2M → FINISH
7:59 | 7:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:34
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:4525:098:0625:09
8:06
-
10K
6.21 mi11:52:2249:468:0124:37
7:56
-0:10
15K
9.32 mi12:17:011:14:258:0024:39
7:57
+0:01
20K
12.43 mi12:42:441:40:088:0425:43
8:17
+0:20
HALF
13.11 mi12:48:101:45:348:045:26
7:59
-0:18
25K
15.53 mi13:07:552:05:198:0519:45
8:09
+0:10
30K
18.64 mi13:34:142:31:388:0926:19
8:29
+0:20
20M
20.00 mi13:45:482:43:128:1011:34
8:31
+0:02
21M
21.00 mi13:54:332:51:578:128:45
8:45
+0:14
35K
21.75 mi14:00:292:57:538:115:56
7:56
-0:49
23M
23.00 mi14:10:423:08:068:1110:13
8:10
+0:14
24M
24.00 mi14:18:453:16:098:118:03
8:03
-0:07
40K
24.85 mi14:25:393:23:038:116:54
8:05
+0:02
25.2M
25.20 mi14:28:413:26:058:113:02
8:48
+0:43
FINISH
26.22 mi14:36:403:34:048:117:59
7:51
-0:57

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

7:51 /mi

Average Pace

8:10 /mi

Slowest Pace

8:48 /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

3:22:17

94% of race

Time at Steady Pace

11:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:10 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:27:4525:098:0625:09
8:06
#17589
10K
6.21 mi11:52:2249:468:0124:37
7:56
#17153
15K
9.32 mi12:17:011:14:258:0024:39
7:57
#16926
20K
12.43 mi12:42:441:40:088:0425:43
8:17
#17246
HALF
13.11 mi12:48:101:45:348:045:26
7:59
#17223
25K
15.53 mi13:07:552:05:198:0519:45
8:09
#17053
30K
18.64 mi13:34:142:31:388:0926:19
8:29
#16945
20M
20.00 mi13:45:482:43:128:1011:34
8:31
#16877
21M
21.00 mi13:54:332:51:578:128:45
8:45
#16725
35K
21.75 mi14:00:292:57:538:115:56
7:56
#16596
23M
23.00 mi14:10:423:08:068:1110:13
8:10
#16384
24M
24.00 mi14:18:453:16:098:118:03
8:03
#16265
40K
24.85 mi14:25:393:23:038:116:54
8:05
#16128
25.2M
25.20 mi14:28:413:26:058:113:02
8:48
#16076
FINISH
26.22 mi14:36:403:34:048:117:59
7:51
#15982
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi175896264626416488(Top 57%)5612(Top 45%)5612(Top 455%)
10K6.21 mi3.10 mi17153+4366016+2486016+24816671(Top 57%)5718(Top 45%)5718(Top 464%)
15K9.32 mi3.11 mi16926+2275882+1345882+13416488(Top 57%)5612(Top 45%)5612(Top 455%)
20K12.43 mi3.11 mi17246-3206071-1896071-18917971(Top 62%)6496(Top 52%)6496(Top 527%)
HALF13.11 mi0.68 mi17223+236061+106061+1016937(Top 58%)5877(Top 47%)5877(Top 477%)
25K15.53 mi2.42 mi17053+1705973+885973+8816441(Top 57%)5675(Top 45%)5675(Top 460%)
30K18.64 mi3.11 mi16945+1085931+425931+4216744(Top 58%)5956(Top 47%)5956(Top 483%)
20M20.00 mi1.36 mi16877+685905+265905+2616304(Top 56%)5811(Top 46%)5811(Top 471%)
21M21.00 mi1.00 mi16725+1525847+585847+5814712(Top 51%)4977(Top 40%)4977(Top 404%)
35K21.75 mi0.75 mi16596+1295779+685779+6814055(Top 48%)4684(Top 37%)4684(Top 380%)
23M23.00 mi1.25 mi16384+2125695+845695+8413582(Top 47%)4493(Top 36%)4493(Top 364%)
24M24.00 mi1.00 mi16265+1195651+445651+4414146(Top 49%)4883(Top 39%)4883(Top 396%)
40K24.85 mi0.85 mi16128+1375588+635588+6313020(Top 45%)4345(Top 35%)4345(Top 352%)
25.2M25.20 mi0.35 mi16076+525568+205568+2013604(Top 47%)4699(Top 37%)4699(Top 381%)
FINISH26.22 mi1.02 mi15982+945538+305538+3014070(Top 48%)4958(Top 39%)4958(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16488

Females

5612

F50-54

5612

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16671

Females

5718

F50-54

5718

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16488

Females

5612

F50-54

5612

15K→20K

9.3 - 12.4 mi

Top 62%
×5
+106ft-86ft

Overall

17971

Females

6496

F50-54

6496

20K→HALF

12.4 - 13.1 mi

Top 58%
×2
+19ft-37ft

Overall

16937

Females

5877

F50-54

5877

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16441

Females

5675

F50-54

5675

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16744

Females

5956

F50-54

5956

30K→20M

18.6 - 20.0 mi

Top 56%
×5
+64ft-50ft

Overall

16304

Females

5811

F50-54

5811

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14712

Females

4977

F50-54

4977

21M→35K

21.0 - 21.8 mi

Top 48%
×7
+17ft-86ft

Overall

14055

Females

4684

F50-54

4684

35K→23M

21.8 - 23.0 mi

Top 47%
×5
+23ft-63ft

Overall

13582

Females

4493

F50-54

4493

23M→24M

23.0 - 24.0 mi

Top 49%
×6
+12ft-82ft

Overall

14146

Females

4883

F50-54

4883

24M→40K

24.0 - 24.9 mi

Top 45%
×1
+6ft-20ft

Overall

13020

Females

4345

F50-54

4345

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1
+13ft-16ft

Overall

13604

Females

4699

F50-54

4699

25.2M→FINISH

25.2 - 26.2 mi

Top 48%
×2
+22ft-21ft

Overall

14070

Females

4958

F50-54

4958

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2590*
Passed By
772
Net Change
+1607
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17589
5K → 10K560*124+436#17589#17153
10K → 15K324*97+227#17153#16926
15K → 20K91200-320#16926#17246
20K → HALF4017+23#17246#17223
HALF → 25K220*50+170#17223#17053
25K → 30K246*138+108#17053#16945
30K → 20M11749+68#16945#16877
20M → 21M17321+152#16877#16725
21M → 35K1367+129#16725#16596
35K → 23M224*12+212#16596#16384
23M → 24M13415+119#16384#16265
24M → 40K14811+137#16265#16128
40K → 25.2M597+52#16128#16076
25.2M → FINISH11824+94#16076#15982
TOTALS2590*772+1607

* 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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