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BOSTON MARATHON 2026

Michelle Callahan

Bib: 20832•F

ND

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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 (F40-44)
#0 / 1737
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
27:47
3.11 mi
Rank: #22376
Start → 5K
27:47 | 8:57/mi
10K
55:19
6.21 mi
Rank: #22297 (+79)
5K → 10K
27:32 | 8:52/mi
15K
1:21:57
9.32 mi
Rank: #21756 (+541)
10K → 15K
26:38 | 8:35/mi
20K
1:48:13
12.43 mi
Rank: #21078 (+678)
15K → 20K
26:16 | 8:28/mi
HALF
1:54:03
13.11 mi
Rank: #21052 (+26)
20K → HALF
5:50 | 8:34/mi
25K
2:15:37
15.53 mi
Rank: #20978 (+74)
HALF → 25K
21:34 | 8:54/mi
30K
2:43:18
18.64 mi
Rank: #20658 (+320)
25K → 30K
27:41 | 8:55/mi
20M
2:55:29
20.00 mi
Rank: #20497 (+161)
30K → 20M
12:11 | 8:59/mi
21M
3:04:53
21.00 mi
Rank: #20364 (+133)
20M → 21M
9:24 | 9:24/mi
35K
3:11:24
21.75 mi
Rank: #20310 (+54)
21M → 35K
6:31 | 8:43/mi
23M
3:23:00
23.00 mi
Rank: #20277 (+33)
35K → 23M
11:36 | 9:17/mi
24M
3:31:57
24.00 mi
Rank: #20226 (+51)
23M → 24M
8:57 | 8:57/mi
40K
3:39:59
24.85 mi
Rank: #20205 (+21)
24M → 40K
8:02 | 9:24/mi
25.2M
3:43:25
25.20 mi
Rank: #20190 (+15)
40K → 25.2M
3:26 | 9:58/mi
FINISH
3:52:40
26.22 mi
Rank: #20222 (-32)
25.2M → FINISH
9:15 | 9:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:03
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time1:58:37
Pace9:03 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:1927:478:5727:47
8:57
-
10K
6.21 mi12:00:5155:198:5527:32
8:52
-0:05
15K
9.32 mi12:27:291:21:578:4826:38
8:35
-0:17
20K
12.43 mi12:53:451:48:138:4326:16
8:28
-0:07
HALF
13.11 mi12:59:351:54:038:435:50
8:34
+0:06
25K
15.53 mi13:21:092:15:378:4421:34
8:54
+0:20
30K
18.64 mi13:48:502:43:188:4627:41
8:55
+0:01
20M
20.00 mi14:01:012:55:298:4712:11
8:59
+0:04
21M
21.00 mi14:10:253:04:538:499:24
9:24
+0:25
35K
21.75 mi14:16:563:11:248:496:31
8:43
-0:41
23M
23.00 mi14:28:323:23:008:5011:36
9:17
+0:34
24M
24.00 mi14:37:293:31:578:508:57
8:57
-0:20
40K
24.85 mi14:45:313:39:598:528:02
9:24
+0:27
25.2M
25.20 mi14:48:573:43:258:523:26
9:58
+0:34
FINISH
26.22 mi14:58:123:52:408:539:15
9:05
-0:53

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

8:28 /mi

Average Pace

8:53 /mi

Slowest Pace

9:58 /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

3:31:48

91% of race

Time at Steady Pace

20:52

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:52 /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 mi11:33:1927:478:5727:47
8:57
#22376
10K
6.21 mi12:00:5155:198:5527:32
8:52
#22297
15K
9.32 mi12:27:291:21:578:4826:38
8:35
#21756
20K
12.43 mi12:53:451:48:138:4326:16
8:28
#21078
HALF
13.11 mi12:59:351:54:038:435:50
8:34
#21052
25K
15.53 mi13:21:092:15:378:4421:34
8:54
#20978
30K
18.64 mi13:48:502:43:188:4627:41
8:55
#20658
20M
20.00 mi14:01:012:55:298:4712:11
8:59
#20497
21M
21.00 mi14:10:253:04:538:499:24
9:24
#20364
35K
21.75 mi14:16:563:11:248:496:31
8:43
#20310
23M
23.00 mi14:28:323:23:008:5011:36
9:17
#20277
24M
24.00 mi14:37:293:31:578:508:57
8:57
#20226
40K
24.85 mi14:45:313:39:598:528:02
9:24
#20205
25.2M
25.20 mi14:48:573:43:258:523:26
9:58
#20190
FINISH
26.22 mi14:58:123:52:408:539:15
9:05
#20222
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi223768866886620533(Top 71%)7860(Top 62%)7860(Top 453%)
10K6.21 mi3.10 mi22297+798808+588808+5822221(Top 77%)8766(Top 70%)8766(Top 505%)
15K9.32 mi3.11 mi21756+5418534+2748534+27420533(Top 71%)7860(Top 62%)7860(Top 453%)
20K12.43 mi3.11 mi21078+6788192+3428192+34219052(Top 66%)7101(Top 56%)7101(Top 409%)
HALF13.11 mi0.68 mi21052+268178+148178+1420633(Top 71%)7933(Top 63%)7933(Top 457%)
25K15.53 mi2.42 mi20978+748153+258153+2520682(Top 71%)8006(Top 64%)8006(Top 461%)
30K18.64 mi3.11 mi20658+3208010+1438010+14319145(Top 66%)7294(Top 58%)7294(Top 420%)
20M20.00 mi1.36 mi20497+1617927+837927+8318826(Top 65%)7205(Top 57%)7205(Top 415%)
21M21.00 mi1.00 mi20364+1337872+557872+5518101(Top 62%)6852(Top 54%)6852(Top 394%)
35K21.75 mi0.75 mi20310+547849+237849+2318716(Top 64%)7274(Top 58%)7274(Top 419%)
23M23.00 mi1.25 mi20277+337845+47845+419726(Top 68%)7851(Top 62%)7851(Top 452%)
24M24.00 mi1.00 mi20226+517841+47841+419265(Top 66%)7654(Top 61%)7654(Top 441%)
40K24.85 mi0.85 mi20205+217852-117852-1120030(Top 69%)8083(Top 64%)8083(Top 465%)
25.2M25.20 mi0.35 mi20190+157851+17851+119300(Top 67%)7723(Top 61%)7723(Top 445%)
FINISH26.22 mi1.02 mi20222-327880-297880-2920843(Top 72%)8495(Top 68%)8495(Top 489%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20533

Females

7860

F40-44

7860

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22221

Females

8766

F40-44

8766

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20533

Females

7860

F40-44

7860

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19052

Females

7101

F40-44

7101

20K→HALF

12.4 - 13.1 mi

Top 71%
×2
+19ft-37ft

Overall

20633

Females

7933

F40-44

7933

HALF→25K

13.1 - 15.5 mi

Top 71%
×4
+66ft-88ft

Overall

20682

Females

8006

F40-44

8006

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19145

Females

7294

F40-44

7294

30K→20M

18.6 - 20.0 mi

Top 65%
×5
+64ft-50ft

Overall

18826

Females

7205

F40-44

7205

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

18101

Females

6852

F40-44

6852

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18716

Females

7274

F40-44

7274

35K→23M

21.8 - 23.0 mi

Top 68%
×5
+23ft-63ft

Overall

19726

Females

7851

F40-44

7851

23M→24M

23.0 - 24.0 mi

Top 66%
×6
+12ft-82ft

Overall

19265

Females

7654

F40-44

7654

24M→40K

24.0 - 24.9 mi

Top 69%
×1
+6ft-20ft

Overall

20030

Females

8083

F40-44

8083

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1
+13ft-16ft

Overall

19300

Females

7723

F40-44

7723

25.2M→FINISH

25.2 - 26.2 mi

Top 72%
×2
+22ft-21ft

Overall

20843

Females

8495

F40-44

8495

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2780*
Passed By
626
Net Change
+2154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22376
5K → 10K279*200+79#22376#22297
10K → 15K563*22+541#22297#21756
15K → 20K684*6+678#21756#21078
20K → HALF3913+26#21078#21052
HALF → 25K16490+74#21052#20978
25K → 30K348*28+320#20978#20658
30K → 20M17817+161#20658#20497
20M → 21M15320+133#20497#20364
21M → 35K7117+54#20364#20310
35K → 23M8350+33#20310#20277
23M → 24M8130+51#20277#20226
24M → 40K6645+21#20226#20205
40K → 25.2M2914+15#20205#20190
25.2M → FINISH4274-32#20190#20222
TOTALS2780*626+2154

* 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

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