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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Shannon Giebelhaus

Bib: 17571 •F •Age: N/A

AB

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 43%
Gender (Female)
#0 / 12578
Top 28%
Age Group (F18-39)
#0 / 5716
Top 47%
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
23:52
3.11 mi
Rank: #14388
Start → 5K
23:52 | 7:41/mi
10K
47:25
6.21 mi
Rank: #14018 (+370)
5K → 10K
23:33 | 7:35/mi
15K
1:11:25
9.32 mi
Rank: #14204 (-186)
10K → 15K
24:00 | 7:44/mi
20K
1:35:30
12.43 mi
Rank: #14185 (+19)
15K → 20K
24:05 | 7:46/mi
HALF
1:40:44
13.11 mi
Rank: #14188 (-3)
20K → HALF
5:14 | 7:41/mi
25K
1:59:28
15.53 mi
Rank: #13988 (+200)
HALF → 25K
18:44 | 7:44/mi
30K
2:23:49
18.64 mi
Rank: #13645 (+343)
25K → 30K
24:21 | 7:51/mi
20M
2:34:31
20.00 mi
Rank: #13485 (+160)
30K → 20M
10:42 | 7:53/mi
21M
2:42:49
21.00 mi
Rank: #13366 (+119)
20M → 21M
8:18 | 8:18/mi
35K
2:48:23
21.75 mi
Rank: #13239 (+127)
21M → 35K
5:34 | 7:27/mi
23M
2:57:54
23.00 mi
Rank: #13033 (+206)
35K → 23M
9:31 | 7:37/mi
24M
3:05:13
24.00 mi
Rank: #12804 (+229)
23M → 24M
7:19 | 7:19/mi
40K
3:11:45
24.85 mi
Rank: #12678 (+126)
24M → 40K
6:32 | 7:39/mi
25.2M
3:14:39
25.20 mi
Rank: #12633 (+45)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:22:01
26.22 mi
Rank: #12483 (+150)
25.2M → FINISH
7:22 | 7:14/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:40:44
Pace7:42 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:17
Pace7:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:1323:527:4123:52
7:41
-
10K
6.21 mi11:29:4647:257:3823:33
7:35
-0:06
15K
9.32 mi11:53:461:11:257:4024:00
7:44
+0:09
20K
12.43 mi12:17:511:35:307:4224:05
7:46
+0:02
HALF
13.11 mi12:23:051:40:447:425:14
7:41
-0:05
25K
15.53 mi12:41:491:59:287:4218:44
7:44
+0:03
30K
18.64 mi13:06:102:23:497:4324:21
7:51
+0:07
20M
20.00 mi13:16:522:34:317:4410:42
7:53
+0:02
21M
21.00 mi13:25:102:42:497:468:18
8:18
+0:25
35K
21.75 mi13:30:442:48:237:455:34
7:27
-0:51
23M
23.00 mi13:40:152:57:547:459:31
7:37
+0:10
24M
24.00 mi13:47:343:05:137:447:19
7:19
-0:18
40K
24.85 mi13:54:063:11:457:436:32
7:39
+0:20
25.2M
25.20 mi13:57:003:14:397:442:54
8:25
+0:46
FINISH
26.22 mi14:04:223:22:017:437:22
7:14
-1:11

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

7:14 /mi

Average Pace

7:43 /mi

Slowest Pace

8:25 /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

3:10:49

94% of race

Time at Steady Pace

11:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi11:06:1323:527:4123:52
7:41
#14388
10K
6.21 mi11:29:4647:257:3823:33
7:35
#14018
15K
9.32 mi11:53:461:11:257:4024:00
7:44
#14204
20K
12.43 mi12:17:511:35:307:4224:05
7:46
#14185
HALF
13.11 mi12:23:051:40:447:425:14
7:41
#14188
25K
15.53 mi12:41:491:59:287:4218:44
7:44
#13988
30K
18.64 mi13:06:102:23:497:4324:21
7:51
#13645
20M
20.00 mi13:16:522:34:317:4410:42
7:53
#13485
21M
21.00 mi13:25:102:42:497:468:18
8:18
#13366
35K
21.75 mi13:30:442:48:237:455:34
7:27
#13239
23M
23.00 mi13:40:152:57:547:459:31
7:37
#13033
24M
24.00 mi13:47:343:05:137:447:19
7:19
#12804
40K
24.85 mi13:54:063:11:457:436:32
7:39
#12678
25.2M
25.20 mi13:57:003:14:397:442:54
8:25
#12633
FINISH
26.22 mi14:04:223:22:017:437:22
7:14
#12483
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 mi143884299429914734(Top 51%)4580(Top 36%)4580(Top 80%)
10K6.21 mi3.10 mi14018+3704100+1994100+19913691(Top 47%)3933(Top 31%)3933(Top 69%)
15K9.32 mi3.11 mi14204-1864244-1444244-14414734(Top 51%)4580(Top 36%)4580(Top 80%)
20K12.43 mi3.11 mi14185+194254-104254-1014146(Top 49%)4286(Top 34%)4286(Top 75%)
HALF13.11 mi0.68 mi14188-34255-14255-114558(Top 50%)4445(Top 35%)4445(Top 78%)
25K15.53 mi2.42 mi13988+2004149+1064149+10613250(Top 46%)3867(Top 31%)3867(Top 68%)
30K18.64 mi3.11 mi13645+3433996+1533996+15312257(Top 42%)3453(Top 27%)3453(Top 60%)
20M20.00 mi1.36 mi13485+1603942+543942+5411951(Top 41%)3375(Top 27%)3375(Top 59%)
21M21.00 mi1.00 mi13366+1193897+453897+4511871(Top 41%)3452(Top 27%)3452(Top 60%)
35K21.75 mi0.75 mi13239+1273846+513846+5110477(Top 36%)2739(Top 22%)2739(Top 48%)
23M23.00 mi1.25 mi13033+2063753+933753+939669(Top 33%)2435(Top 19%)2435(Top 43%)
24M24.00 mi1.00 mi12804+2293638+1153638+1158782(Top 30%)2084(Top 17%)2084(Top 36%)
40K24.85 mi0.85 mi12678+1263595+433595+439951(Top 34%)2735(Top 22%)2735(Top 48%)
25.2M25.20 mi0.35 mi12633+453585+103585+1011096(Top 38%)3387(Top 27%)3387(Top 59%)
FINISH26.22 mi1.02 mi12483+1503531+543531+549389(Top 32%)2559(Top 20%)2559(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21
+97ft-345ft

Overall

14734

Females

4580

F18-39

4580

5K→10K

3.1 - 6.2 mi

Top 47%
×5
+79ft-138ft

Overall

13691

Females

3933

F18-39

3933

10K→15K

6.2 - 9.3 mi

Top 51%
×3
+67ft-78ft

Overall

14734

Females

4580

F18-39

4580

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14146

Females

4286

F18-39

4286

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14558

Females

4445

F18-39

4445

HALF→25K

13.1 - 15.5 mi

Top 46%
×4
+66ft-88ft

Overall

13250

Females

3867

F18-39

3867

25K→30K

15.5 - 18.6 mi

Top 42%
×9
+181ft-148ft

Overall

12257

Females

3453

F18-39

3453

30K→20M

18.6 - 20.0 mi

Top 41%
×5
+64ft-50ft

Overall

11951

Females

3375

F18-39

3375

20M→21M

20.0 - 21.0 mi

Top 41%
×8
+106ft-24ft

Overall

11871

Females

3452

F18-39

3452

21M→35K

21.0 - 21.8 mi

Top 36%
×7
+17ft-86ft

Overall

10477

Females

2739

F18-39

2739

35K→23M

21.8 - 23.0 mi

Top 33%
×5
+23ft-63ft

Overall

9669

Females

2435

F18-39

2435

23M→24M

23.0 - 24.0 mi

Top 30%
×6
+12ft-82ft

Overall

8782

Females

2084

F18-39

2084

24M→40K

24.0 - 24.9 mi

Top 34%
×1
+6ft-20ft

Overall

9951

Females

2735

F18-39

2735

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1
+13ft-16ft

Overall

11096

Females

3387

F18-39

3387

25.2M→FINISH

25.2 - 26.2 mi

Top 32%
×2
+22ft-21ft

Overall

9389

Females

2559

F18-39

2559

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2748*
Passed By
713
Net Change
+1905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14388
5K → 10K517*147+370#14388#14018
10K → 15K144200-186#14018#14204
15K → 20K178159+19#14204#14185
20K → HALF3235-3#14185#14188
HALF → 25K242*42+200#14188#13988
25K → 30K379*36+343#13988#13645
30K → 20M17717+160#13645#13485
20M → 21M14930+119#13485#13366
21M → 35K1358+127#13366#13239
35K → 23M212*6+206#13239#13033
23M → 24M234*5+229#13033#12804
24M → 40K13610+126#12804#12678
40K → 25.2M527+45#12678#12633
25.2M → FINISH16111+150#12633#12483
TOTALS2748*713+1905

* 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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Activity Data

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