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BOSTON MARATHON 2026

Chris Withbroe

Bib: 24305•F

OR

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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 (F55-59)
#0 / 951
Top 33%
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
26:55
3.11 mi
Rank: #20999
Start → 5K
26:55 | 8:40/mi
10K
53:53
6.21 mi
Rank: #21170 (-171)
5K → 10K
26:58 | 8:41/mi
15K
1:20:35
9.32 mi
Rank: #20983 (+187)
10K → 15K
26:42 | 8:36/mi
20K
1:47:55
12.43 mi
Rank: #20968 (+15)
15K → 20K
27:20 | 8:48/mi
HALF
1:53:28
13.11 mi
Rank: #20826 (+142)
20K → HALF
5:33 | 8:09/mi
25K
2:14:04
15.53 mi
Rank: #20447 (+379)
HALF → 25K
20:36 | 8:30/mi
30K
2:41:48
18.64 mi
Rank: #20204 (+243)
25K → 30K
27:44 | 8:56/mi
20M
2:53:44
20.00 mi
Rank: #20039 (+165)
30K → 20M
11:56 | 8:48/mi
21M
3:03:43
21.00 mi
Rank: #20073 (-34)
20M → 21M
9:59 | 9:59/mi
35K
3:09:56
21.75 mi
Rank: #19946 (+127)
21M → 35K
6:13 | 8:19/mi
23M
3:20:46
23.00 mi
Rank: #19768 (+178)
35K → 23M
10:50 | 8:40/mi
24M
3:29:24
24.00 mi
Rank: #19673 (+95)
23M → 24M
8:38 | 8:38/mi
40K
3:36:50
24.85 mi
Rank: #19557 (+116)
24M → 40K
7:26 | 8:42/mi
25.2M
3:40:08
25.20 mi
Rank: #19522 (+35)
40K → 25.2M
3:18 | 9:35/mi
FINISH
3:48:57
26.22 mi
Rank: #19525 (-3)
25.2M → FINISH
8:49 | 8:40/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:53:28
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:55:29
Pace8:49 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5126:558:4026:55
8:40
-
10K
6.21 mi11:57:4953:538:4126:58
8:41
+0:01
15K
9.32 mi12:24:311:20:358:3926:42
8:36
-0:05
20K
12.43 mi12:51:511:47:558:4227:20
8:48
+0:12
HALF
13.11 mi12:57:241:53:288:405:33
8:09
-0:39
25K
15.53 mi13:18:002:14:048:3820:36
8:30
+0:21
30K
18.64 mi13:45:442:41:488:4127:44
8:56
+0:26
20M
20.00 mi13:57:402:53:448:4211:56
8:48
-0:08
21M
21.00 mi14:07:393:03:438:459:59
9:59
+1:11
35K
21.75 mi14:13:523:09:568:456:13
8:19
-1:40
23M
23.00 mi14:24:423:20:468:4410:50
8:40
+0:21
24M
24.00 mi14:33:203:29:248:448:38
8:38
-0:02
40K
24.85 mi14:40:463:36:508:447:26
8:42
+0:04
25.2M
25.20 mi14:44:043:40:088:453:18
9:35
+0:53
FINISH
26.22 mi14:52:533:48:578:458:49
8:40
-0:55

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

8:09 /mi

Average Pace

8:44 /mi

Slowest Pace

9:59 /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

11:46

5% of race

Time at Steady Pace

2:56:10

77% of race

Time at Slower Pace

41:01

18% of race

Average Pace: 8:44 /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 mi11:30:5126:558:4026:55
8:40
#20999
10K
6.21 mi11:57:4953:538:4126:58
8:41
#21170
15K
9.32 mi12:24:311:20:358:3926:42
8:36
#20983
20K
12.43 mi12:51:511:47:558:4227:20
8:48
#20968
HALF
13.11 mi12:57:241:53:288:405:33
8:09
#20826
25K
15.53 mi13:18:002:14:048:3820:36
8:30
#20447
30K
18.64 mi13:45:442:41:488:4127:44
8:56
#20204
20M
20.00 mi13:57:402:53:448:4211:56
8:48
#20039
21M
21.00 mi14:07:393:03:438:459:59
9:59
#20073
35K
21.75 mi14:13:523:09:568:456:13
8:19
#19946
23M
23.00 mi14:24:423:20:468:4410:50
8:40
#19768
24M
24.00 mi14:33:203:29:248:448:38
8:38
#19673
40K
24.85 mi14:40:463:36:508:447:26
8:42
#19557
25.2M
25.20 mi14:44:043:40:088:453:18
9:35
#19522
FINISH
26.22 mi14:52:533:48:578:458:49
8:40
#19525
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi209998165816520650(Top 71%)7929(Top 63%)7929(Top 834%)
10K6.21 mi3.10 mi21170-1718233-688233-6821318(Top 73%)8290(Top 66%)8290(Top 872%)
15K9.32 mi3.11 mi20983+1878132+1018132+10120650(Top 71%)7929(Top 63%)7929(Top 834%)
20K12.43 mi3.11 mi20968+158134-28134-220966(Top 72%)8121(Top 65%)8121(Top 854%)
HALF13.11 mi0.68 mi20826+1428064+708064+7018138(Top 62%)6566(Top 52%)6566(Top 690%)
25K15.53 mi2.42 mi20447+3797866+1987866+19818567(Top 64%)6886(Top 55%)6886(Top 724%)
30K18.64 mi3.11 mi20204+2437758+1087758+10819234(Top 66%)7342(Top 58%)7342(Top 772%)
20M20.00 mi1.36 mi20039+1657689+697689+6917923(Top 62%)6719(Top 53%)6719(Top 707%)
21M21.00 mi1.00 mi20073-347720-317720-3120376(Top 70%)8047(Top 64%)8047(Top 846%)
35K21.75 mi0.75 mi19946+1277664+567664+5616549(Top 57%)6073(Top 48%)6073(Top 639%)
23M23.00 mi1.25 mi19768+1787602+627602+6216691(Top 58%)6259(Top 50%)6259(Top 658%)
24M24.00 mi1.00 mi19673+957562+407562+4017700(Top 61%)6850(Top 54%)6850(Top 720%)
40K24.85 mi0.85 mi19557+1167509+537509+5316870(Top 58%)6451(Top 51%)6451(Top 678%)
25.2M25.20 mi0.35 mi19522+357492+177492+1717721(Top 61%)6893(Top 55%)6893(Top 725%)
FINISH26.22 mi1.02 mi19525-37505-137505-1318945(Top 65%)7532(Top 60%)7532(Top 792%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20650

Females

7929

F55-59

7929

5K→10K

3.1 - 6.2 mi

Top 73%
×5
+79ft-138ft

Overall

21318

Females

8290

F55-59

8290

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20650

Females

7929

F55-59

7929

15K→20K

9.3 - 12.4 mi

Top 72%
×5
+106ft-86ft

Overall

20966

Females

8121

F55-59

8121

20K→HALF

12.4 - 13.1 mi

Top 62%
×2
+19ft-37ft

Overall

18138

Females

6566

F55-59

6566

HALF→25K

13.1 - 15.5 mi

Top 64%
×4
+66ft-88ft

Overall

18567

Females

6886

F55-59

6886

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19234

Females

7342

F55-59

7342

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

17923

Females

6719

F55-59

6719

20M→21M

20.0 - 21.0 mi

Top 70%
×8
+106ft-24ft

Overall

20376

Females

8047

F55-59

8047

21M→35K

21.0 - 21.8 mi

Top 57%
×7
+17ft-86ft

Overall

16549

Females

6073

F55-59

6073

35K→23M

21.8 - 23.0 mi

Top 58%
×5
+23ft-63ft

Overall

16691

Females

6259

F55-59

6259

23M→24M

23.0 - 24.0 mi

Top 61%
×6
+12ft-82ft

Overall

17700

Females

6850

F55-59

6850

24M→40K

24.0 - 24.9 mi

Top 58%
×1
+6ft-20ft

Overall

16870

Females

6451

F55-59

6451

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1
+13ft-16ft

Overall

17721

Females

6893

F55-59

6893

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
×2
+22ft-21ft

Overall

18945

Females

7532

F55-59

7532

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2411*
Passed By
769
Net Change
+1474
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20999
5K → 10K197200-171#20999#21170
10K → 15K287*100+187#21170#20983
15K → 20K177162+15#20983#20968
20K → HALF1442+142#20968#20826
HALF → 25K387*8+379#20826#20447
25K → 30K312*69+243#20447#20204
30K → 20M18116+165#20204#20039
20M → 21M69103-34#20039#20073
21M → 35K1314+127#20073#19946
35K → 23M1879+178#19946#19768
23M → 24M11520+95#19768#19673
24M → 40K12711+116#19673#19557
40K → 25.2M416+35#19557#19522
25.2M → FINISH5659-3#19522#19525
TOTALS2411*769+1474

* 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