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BOSTON MARATHON 2026

Cecelia Spiers

Bib: 29402•F

MA

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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
34:42
3.11 mi
Rank: #28230
Start → 5K
34:42 | 11:11/mi
10K
1:10:35
6.21 mi
Rank: #28274 (-44)
5K → 10K
35:53 | 11:33/mi
15K
1:45:18
9.32 mi
Rank: #28070 (+204)
10K → 15K
34:43 | 11:11/mi
20K
2:20:20
12.43 mi
Rank: #27889 (+181)
15K → 20K
35:02 | 11:17/mi
HALF
2:28:00
13.11 mi
Rank: #27881 (+8)
20K → HALF
7:40 | 11:15/mi
25K
2:56:08
15.53 mi
Rank: #27736 (+145)
HALF → 25K
28:08 | 11:37/mi
30K
3:33:17
18.64 mi
Rank: #27569 (+167)
25K → 30K
37:09 | 11:58/mi
20M
3:49:59
20.00 mi
Rank: #27520 (+49)
30K → 20M
16:42 | 12:18/mi
21M
4:03:46
21.00 mi
Rank: #27520
20M → 21M
13:47 | 13:47/mi
35K
4:12:54
21.75 mi
Rank: #27510 (+10)
21M → 35K
9:08 | 12:13/mi
23M
4:28:21
23.00 mi
Rank: #27492 (+18)
35K → 23M
15:27 | 12:21/mi
24M
4:40:34
24.00 mi
Rank: #27470 (+22)
23M → 24M
12:13 | 12:13/mi
40K
4:51:18
24.85 mi
Rank: #27435 (+35)
24M → 40K
10:44 | 12:34/mi
25.2M
4:56:08
25.20 mi
Rank: #27437 (-2)
40K → 25.2M
4:50 | 14:01/mi
FINISH
5:07:34
26.22 mi
Rank: #27412 (+25)
25.2M → FINISH
11:26 | 11:14/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:28:00
Pace11:18 /mi
2nd Half
Distance13.11 mi
Time2:39:34
Pace12:11 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:01:0934:4211:1134:42
11:11
-
10K
6.21 mi12:37:021:10:3511:2235:53
11:33
+0:22
15K
9.32 mi13:11:451:45:1811:1834:43
11:11
-0:22
20K
12.43 mi13:46:472:20:2011:1835:02
11:17
+0:06
HALF
13.11 mi13:54:272:28:0011:187:40
11:15
-0:02
25K
15.53 mi14:22:352:56:0811:2128:08
11:37
+0:22
30K
18.64 mi14:59:443:33:1711:2737:09
11:58
+0:21
20M
20.00 mi15:16:263:49:5911:3016:42
12:18
+0:20
21M
21.00 mi15:30:134:03:4611:3713:47
13:47
+1:29
35K
21.75 mi15:39:214:12:5411:389:08
12:13
-1:34
23M
23.00 mi15:54:484:28:2111:4115:27
12:21
+0:08
24M
24.00 mi16:07:014:40:3411:4212:13
12:13
-0:08
40K
24.85 mi16:17:454:51:1811:4410:44
12:34
+0:21
25.2M
25.20 mi16:22:354:56:0811:464:50
14:01
+1:27
FINISH
26.22 mi16:34:015:07:3411:4511:26
11:14
-2:47

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

11:11 /mi

Average Pace

11:44 /mi

Slowest Pace

14:01 /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

2:03:33

40% of race

Time at Steady Pace

2:34:40

50% of race

Time at Slower Pace

29:21

10% of race

Average Pace: 11:44 /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 mi12:01:0934:4211:1134:42
11:11
#28230
10K
6.21 mi12:37:021:10:3511:2235:53
11:33
#28274
15K
9.32 mi13:11:451:45:1811:1834:43
11:11
#28070
20K
12.43 mi13:46:472:20:2011:1835:02
11:17
#27889
HALF
13.11 mi13:54:272:28:0011:187:40
11:15
#27881
25K
15.53 mi14:22:352:56:0811:2128:08
11:37
#27736
30K
18.64 mi14:59:443:33:1711:2737:09
11:58
#27569
20M
20.00 mi15:16:263:49:5911:3016:42
12:18
#27520
21M
21.00 mi15:30:134:03:4611:3713:47
13:47
#27520
35K
21.75 mi15:39:214:12:5411:389:08
12:13
#27510
23M
23.00 mi15:54:484:28:2111:4115:27
12:21
#27492
24M
24.00 mi16:07:014:40:3411:4212:13
12:13
#27470
40K
24.85 mi16:17:454:51:1811:4410:44
12:34
#27435
25.2M
25.20 mi16:22:354:56:0811:464:50
14:01
#27437
FINISH
26.22 mi16:34:015:07:3411:4511:26
11:14
#27412
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 mi28230120351203527641(Top 95%)11685(Top 93%)11685(Top 204%)
10K6.21 mi3.10 mi28274-4412064-2912064-2928277(Top 97%)12078(Top 96%)12078(Top 211%)
15K9.32 mi3.11 mi28070+20411936+12811936+12827641(Top 95%)11685(Top 93%)11685(Top 204%)
20K12.43 mi3.11 mi27889+18111830+10611830+10627307(Top 94%)11490(Top 91%)11490(Top 201%)
HALF13.11 mi0.68 mi27881+811831-111831-127625(Top 95%)11720(Top 93%)11720(Top 205%)
25K15.53 mi2.42 mi27736+14511747+8411747+8427138(Top 94%)11449(Top 91%)11449(Top 200%)
30K18.64 mi3.11 mi27569+16711675+7211675+7226732(Top 92%)11311(Top 90%)11311(Top 198%)
20M20.00 mi1.36 mi27520+4911644+3111644+3126753(Top 92%)11382(Top 90%)11382(Top 199%)
21M21.00 mi1.00 mi2752011659-1511659-1527146(Top 94%)11621(Top 92%)11621(Top 203%)
35K21.75 mi0.75 mi27510+1011660-111660-126980(Top 93%)11549(Top 92%)11549(Top 202%)
23M23.00 mi1.25 mi27492+1811658+211658+226594(Top 92%)11377(Top 90%)11377(Top 199%)
24M24.00 mi1.00 mi27470+2211654+411654+426876(Top 93%)11551(Top 92%)11551(Top 202%)
40K24.85 mi0.85 mi27435+3511637+1711637+1726594(Top 92%)11445(Top 91%)11445(Top 200%)
25.2M25.20 mi0.35 mi27437-211639-211639-227238(Top 94%)11756(Top 93%)11756(Top 206%)
FINISH26.22 mi1.02 mi27412+2511630+911630+926485(Top 91%)11386(Top 91%)11386(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21
+97ft-345ft

Overall

27641

Females

11685

F18-39

11685

5K→10K

3.1 - 6.2 mi

Top 97%
×5
+79ft-138ft

Overall

28277

Females

12078

F18-39

12078

10K→15K

6.2 - 9.3 mi

Top 95%
×3
+67ft-78ft

Overall

27641

Females

11685

F18-39

11685

15K→20K

9.3 - 12.4 mi

Top 94%
×5
+106ft-86ft

Overall

27307

Females

11490

F18-39

11490

20K→HALF

12.4 - 13.1 mi

Top 95%
×2
+19ft-37ft

Overall

27625

Females

11720

F18-39

11720

HALF→25K

13.1 - 15.5 mi

Top 94%
×4
+66ft-88ft

Overall

27138

Females

11449

F18-39

11449

25K→30K

15.5 - 18.6 mi

Top 92%
×9
+181ft-148ft

Overall

26732

Females

11311

F18-39

11311

30K→20M

18.6 - 20.0 mi

Top 92%
×5
+64ft-50ft

Overall

26753

Females

11382

F18-39

11382

20M→21M

20.0 - 21.0 mi

Top 94%
×8
+106ft-24ft

Overall

27146

Females

11621

F18-39

11621

21M→35K

21.0 - 21.8 mi

Top 93%
×7
+17ft-86ft

Overall

26980

Females

11549

F18-39

11549

35K→23M

21.8 - 23.0 mi

Top 92%
×5
+23ft-63ft

Overall

26594

Females

11377

F18-39

11377

23M→24M

23.0 - 24.0 mi

Top 93%
×6
+12ft-82ft

Overall

26876

Females

11551

F18-39

11551

24M→40K

24.0 - 24.9 mi

Top 92%
×1
+6ft-20ft

Overall

26594

Females

11445

F18-39

11445

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1
+13ft-16ft

Overall

27238

Females

11756

F18-39

11756

25.2M→FINISH

25.2 - 26.2 mi

Top 91%
×2
+22ft-21ft

Overall

26485

Females

11386

F18-39

11386

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1137*
Passed By
319
Net Change
+818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28230
5K → 10K80124-44#28230#28274
10K → 15K215*11+204#28274#28070
15K → 20K19413+181#28070#27889
20K → HALF2517+8#27889#27881
HALF → 25K1538+145#27881#27736
25K → 30K18215+167#27736#27569
30K → 20M6213+49#27569#27520
20M → 21M38380#27520#27520
21M → 35K2616+10#27520#27510
35K → 23M3921+18#27510#27492
23M → 24M3917+22#27492#27470
24M → 40K449+35#27470#27435
40K → 25.2M68-2#27435#27437
25.2M → FINISH349+25#27437#27412
TOTALS1137*319+818

* 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