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BOSTON MARATHON 2026

Blanca Spence

Bib: 12032•F

IL

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 35%
Gender (Female)
#0 / 12578
Top 18%
Masters (Masters Women)
#0 / 6862
Top 6%
Age Group (F45-49)
#0 / 1786
Top 6%
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
20:57
3.11 mi
Rank: #6344
Start → 5K
20:57 | 6:45/mi
10K
42:39
6.21 mi
Rank: #7516 (-1172)
5K → 10K
21:42 | 7:00/mi
15K
1:05:06
9.32 mi
Rank: #8468 (-952)
10K → 15K
22:27 | 7:14/mi
20K
1:27:56
12.43 mi
Rank: #8914 (-446)
15K → 20K
22:50 | 7:21/mi
HALF
1:32:46
13.11 mi
Rank: #8942 (-28)
20K → HALF
4:50 | 7:06/mi
25K
1:50:52
15.53 mi
Rank: #9200 (-258)
HALF → 25K
18:06 | 7:28/mi
30K
2:15:21
18.64 mi
Rank: #9733 (-533)
25K → 30K
24:29 | 7:53/mi
20M
2:26:12
20.00 mi
Rank: #9937 (-204)
30K → 20M
10:51 | 8:00/mi
21M
2:34:48
21.00 mi
Rank: #10132 (-195)
20M → 21M
8:36 | 8:36/mi
35K
2:40:24
21.75 mi
Rank: #10142 (-10)
21M → 35K
5:36 | 7:30/mi
23M
2:50:11
23.00 mi
Rank: #10166 (-24)
35K → 23M
9:47 | 7:50/mi
24M
2:57:32
24.00 mi
Rank: #10075 (+91)
23M → 24M
7:21 | 7:21/mi
40K
3:04:01
24.85 mi
Rank: #10035 (+40)
24M → 40K
6:29 | 7:35/mi
25.2M
3:06:56
25.20 mi
Rank: #10036 (-1)
40K → 25.2M
2:55 | 8:28/mi
FINISH
3:14:41
26.22 mi
Rank: #10117 (-81)
25.2M → FINISH
7:45 | 7:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:46
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:41:55
Pace7:47 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0220:576:4520:57
6:45
-
10K
6.21 mi11:10:4442:396:5221:42
7:00
+0:15
15K
9.32 mi11:33:111:05:067:0022:27
7:14
+0:14
20K
12.43 mi11:56:011:27:567:0522:50
7:21
+0:07
HALF
13.11 mi12:00:511:32:467:054:50
7:06
-0:15
25K
15.53 mi12:18:571:50:527:0918:06
7:28
+0:22
30K
18.64 mi12:43:262:15:217:1624:29
7:53
+0:25
20M
20.00 mi12:54:172:26:127:1910:51
8:00
+0:07
21M
21.00 mi13:02:532:34:487:238:36
8:36
+0:36
35K
21.75 mi13:08:292:40:247:235:36
7:30
-1:06
23M
23.00 mi13:18:162:50:117:249:47
7:50
+0:20
24M
24.00 mi13:25:372:57:327:247:21
7:21
-0:29
40K
24.85 mi13:32:063:04:017:256:29
7:35
+0:14
25.2M
25.20 mi13:35:013:06:567:262:55
8:28
+0:53
FINISH
26.22 mi13:42:463:14:417:267:45
7:37
-0:51

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

6:45 /mi

Average Pace

7:26 /mi

Slowest Pace

8:36 /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

1:09:56

36% of race

Time at Steady Pace

1:08:07

35% of race

Time at Slower Pace

56:38

29% of race

Average Pace: 7:25 /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 mi10:49:0220:576:4520:57
6:45
#6344
10K
6.21 mi11:10:4442:396:5221:42
7:00
#7516
15K
9.32 mi11:33:111:05:067:0022:27
7:14
#8468
20K
12.43 mi11:56:011:27:567:0522:50
7:21
#8914
HALF
13.11 mi12:00:511:32:467:054:50
7:06
#8942
25K
15.53 mi12:18:571:50:527:0918:06
7:28
#9200
30K
18.64 mi12:43:262:15:217:1624:29
7:53
#9733
20M
20.00 mi12:54:172:26:127:1910:51
8:00
#9937
21M
21.00 mi13:02:532:34:487:238:36
8:36
#10132
35K
21.75 mi13:08:292:40:247:235:36
7:30
#10142
23M
23.00 mi13:18:162:50:117:249:47
7:50
#10166
24M
24.00 mi13:25:372:57:327:247:21
7:21
#10075
40K
24.85 mi13:32:063:04:017:256:29
7:35
#10035
25.2M
25.20 mi13:35:013:06:567:262:55
8:28
#10036
FINISH
26.22 mi13:42:463:14:417:267:45
7:37
#10117
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi634459459410353(Top 36%)2139(Top 17%)2139(Top 120%)
10K6.21 mi3.10 mi7516-1172933-339933-3398582(Top 30%)1306(Top 10%)1306(Top 73%)
15K9.32 mi3.11 mi8468-9521262-3291262-32910353(Top 36%)2139(Top 17%)2139(Top 120%)
20K12.43 mi3.11 mi8914-4461443-1811443-18110653(Top 37%)2384(Top 19%)2384(Top 133%)
HALF13.11 mi0.68 mi8942-281456-131456-139456(Top 33%)1736(Top 14%)1736(Top 97%)
25K15.53 mi2.42 mi9200-2581594-1381594-13811124(Top 38%)2694(Top 21%)2694(Top 151%)
30K18.64 mi3.11 mi9733-5331905-3111905-31112583(Top 43%)3611(Top 29%)3611(Top 202%)
20M20.00 mi1.36 mi9937-2042033-1282033-12812747(Top 44%)3793(Top 30%)3793(Top 212%)
21M21.00 mi1.00 mi10132-1952165-1322165-13213759(Top 47%)4447(Top 35%)4447(Top 249%)
35K21.75 mi0.75 mi10142-102180-152180-1510752(Top 37%)2864(Top 23%)2864(Top 160%)
23M23.00 mi1.25 mi10166-242238-582238-5811159(Top 38%)3188(Top 25%)3188(Top 178%)
24M24.00 mi1.00 mi10075+912211+272211+279005(Top 31%)2175(Top 17%)2175(Top 122%)
40K24.85 mi0.85 mi10035+402205+62205+69484(Top 33%)2497(Top 20%)2497(Top 140%)
25.2M25.20 mi0.35 mi10036-12222-172222-1711371(Top 39%)3527(Top 28%)3527(Top 197%)
FINISH26.22 mi1.02 mi10117-812286-642286-6412279(Top 42%)4008(Top 32%)4008(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10353

Females

2139

F45-49

2139

5K→10K

3.1 - 6.2 mi

Top 30%
×5
+79ft-138ft

Overall

8582

Females

1306

F45-49

1306

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10353

Females

2139

F45-49

2139

15K→20K

9.3 - 12.4 mi

Top 37%
×5
+106ft-86ft

Overall

10653

Females

2384

F45-49

2384

20K→HALF

12.4 - 13.1 mi

Top 33%
×2
+19ft-37ft

Overall

9456

Females

1736

F45-49

1736

HALF→25K

13.1 - 15.5 mi

Top 38%
×4
+66ft-88ft

Overall

11124

Females

2694

F45-49

2694

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12583

Females

3611

F45-49

3611

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12747

Females

3793

F45-49

3793

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13759

Females

4447

F45-49

4447

21M→35K

21.0 - 21.8 mi

Top 37%
×7
+17ft-86ft

Overall

10752

Females

2864

F45-49

2864

35K→23M

21.8 - 23.0 mi

Top 38%
×5
+23ft-63ft

Overall

11159

Females

3188

F45-49

3188

23M→24M

23.0 - 24.0 mi

Top 31%
×6
+12ft-82ft

Overall

9005

Females

2175

F45-49

2175

24M→40K

24.0 - 24.9 mi

Top 33%
×1
+6ft-20ft

Overall

9484

Females

2497

F45-49

2497

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1
+13ft-16ft

Overall

11371

Females

3527

F45-49

3527

25.2M→FINISH

25.2 - 26.2 mi

Top 42%
×2
+22ft-21ft

Overall

12279

Females

4008

F45-49

4008

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
747*
Passed By
4514
Net Change
-3773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6344
5K → 10K171189-1172#6344#7516
10K → 15K10962-952#7516#8468
15K → 20K42488-446#8468#8914
20K → HALF2048-28#8914#8942
HALF → 25K56314-258#8942#9200
25K → 30K67600-533#9200#9733
30K → 20M41244-204#9733#9937
20M → 21M36229-195#9937#10132
21M → 35K5161-10#10132#10142
35K → 23M117140-24#10142#10166
23M → 24M12534+91#10166#10075
24M → 40K85*45+40#10075#10035
40K → 25.2M3737-1#10035#10036
25.2M → FINISH43123-81#10036#10117
TOTALS747*4514-3773

* 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