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BOSTON MARATHON 2025

Alexa Kanbergs

Bib: 10123•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:32
Rank: #7310
Start → 5K
21:32 | 6:56/mi
10K· 6.21 mi
43:05
Rank: #7401 (-91)
5K → 10K
21:33 | 6:56/mi
15K· 9.32 mi
1:04:42
Rank: #7391 (+10)
10K → 15K
21:37 | 6:57/mi
20K· 12.43 mi
1:26:56
Rank: #7472 (-81)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:31:51
Rank: #7534 (-62)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:49:24
Rank: #7541 (-7)
Half → 25K
17:33 | 7:14/mi
30K· 18.64 mi
2:13:42
Rank: #7846 (-305)
25K → 30K
24:18 | 7:49/mi
20M
2:23:55
Rank: #7719 (+127)
30K → 20M
10:13 | 7:31/mi
21M
2:32:02
Rank: #7683 (+36)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:37:33
Rank: #7640 (+43)
21M → 35K
5:31 | 7:22/mi
23M
2:47:05
Rank: #7564 (+76)
35K → 23M
9:32 | 7:37/mi
24M
2:55:20
Rank: #7764 (-200)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:01:45
Rank: #7690 (+74)
24M → 40K
6:25 | 7:30/mi
25.2M
3:04:48
Rank: #7714 (-24)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:12:17
Rank: #7683 (+31)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:51
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:40:26
Pace7:40 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2321:326:5621:32
6:56
-
10K
6.21 mi11:08:5643:056:5621:33
6:56
0:00
15K
9.32 mi11:30:331:04:426:5621:37
6:57
+0:01
20K
12.43 mi11:52:471:26:567:0022:14
7:09
+0:12
Half
13.11 mi11:57:421:31:517:004:55
7:12
+0:03
25K
15.53 mi12:15:151:49:247:0317:33
7:14
+0:02
30K
18.64 mi12:39:332:13:427:1024:18
7:49
+0:35
20M
20.00 mi12:49:462:23:557:1210:13
7:31
-0:18
21M
21.00 mi12:57:532:32:027:148:07
8:07
+0:36
35K
21.75 mi13:03:242:37:337:155:31
7:22
-0:45
23M
23.00 mi13:12:562:47:057:169:32
7:37
+0:15
24M
24.00 mi13:21:112:55:207:188:15
8:15
+0:38
40K
24.85 mi13:27:363:01:457:196:25
7:30
-0:45
25.2M
25.20 mi13:30:393:04:487:203:03
8:51
+1:21
Finish
26.22 mi13:38:083:12:177:207:29
7:21
-1:30

Checkpoints & Pacing

📈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

6:56 /mi

Average Pace

7:20 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:42

34% of race

Time at Steady Pace

1:23:52

44% of race

Time at Slower Pace

43:43

23% of race

Average Pace: 7:20 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:47:2321:326:5621:32
6:56
#7310
10K
6.21 mi11:08:5643:056:5621:33
6:56
#7401
15K
9.32 mi11:30:331:04:426:5621:37
6:57
#7391
20K
12.43 mi11:52:471:26:567:0022:14
7:09
#7472
Half
13.11 mi11:57:421:31:517:004:55
7:12
#7534
25K
15.53 mi12:15:151:49:247:0317:33
7:14
#7541
30K
18.64 mi12:39:332:13:427:1024:18
7:49
#7846
20M
20.00 mi12:49:462:23:557:1210:13
7:31
#7719
21M
21.00 mi12:57:532:32:027:148:07
8:07
#7683
35K
21.75 mi13:03:242:37:337:155:31
7:22
#7640
23M
23.00 mi13:12:562:47:057:169:32
7:37
#7564
24M
24.00 mi13:21:112:55:207:188:15
8:15
#7764
40K
24.85 mi13:27:363:01:457:196:25
7:30
#7690
25.2M
25.20 mi13:30:393:04:487:203:03
8:51
#7714
Finish
26.22 mi13:38:083:12:177:207:29
7:21
#7683
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi73107717717371(Top 26%)827(Top 7%)827(Top 15%)
10K6.21 mi3.10 mi7401-91799-28799-287531(Top 27%)851(Top 7%)851(Top 16%)
15K9.32 mi3.11 mi7391+10806-7806-77371(Top 26%)827(Top 7%)827(Top 15%)
20K12.43 mi3.11 mi7472-81845-39845-397882(Top 28%)1067(Top 9%)1067(Top 20%)
Half13.11 mi0.68 mi7534-62865-20865-209171(Top 32%)1556(Top 13%)1556(Top 28%)
25K15.53 mi2.42 mi7541-7888-23888-237919(Top 28%)1187(Top 10%)1187(Top 22%)
30K18.64 mi3.11 mi7846-3051041-1531041-15310106(Top 36%)2331(Top 19%)2331(Top 43%)
20M20.00 mi1.36 mi7719+1271028+131028+137151(Top 25%)1198(Top 10%)1198(Top 22%)
21M21.00 mi1.00 mi7683+361057-291057-298070(Top 28%)1752(Top 14%)1752(Top 32%)
35K21.75 mi0.75 mi7640+431063-61063-67750(Top 27%)1573(Top 13%)1573(Top 29%)
23M23.00 mi1.25 mi7564+761083-201083-207349(Top 26%)1548(Top 13%)1548(Top 28%)
24M24.00 mi1.00 mi7764-2001187-1041187-10412913(Top 45%)4263(Top 35%)4263(Top 78%)
40K24.85 mi0.85 mi7690+741196-91196-96847(Top 24%)1487(Top 12%)1487(Top 27%)
25.2M25.20 mi0.35 mi7714-241220-241220-2410929(Top 38%)3423(Top 28%)3423(Top 63%)
Finish26.22 mi1.02 mi7683+311236-161236-168092(Top 28%)2100(Top 17%)2100(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7371

Females

827

F18-39

827

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7531

Females

851

F18-39

851

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7371

Females

827

F18-39

827

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7882

Females

1067

F18-39

1067

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9171

Females

1556

F18-39

1556

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7919

Females

1187

F18-39

1187

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10106

Females

2331

F18-39

2331

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7151

Females

1198

F18-39

1198

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

8070

Females

1752

F18-39

1752

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7750

Females

1573

F18-39

1573

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7349

Females

1548

F18-39

1548

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12913

Females

4263

F18-39

4263

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6847

Females

1487

F18-39

1487

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10929

Females

3423

F18-39

3423

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

8092

Females

2100

F18-39

2100

Passing Analysis

Category:
Athletes Passed
1340
Passed By
1713
Net Change
-373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7310
5K → 10K152243-91#7310#7401
10K → 15K147137+10#7401#7391
15K → 20K107188-81#7391#7472
20K → Half1072-62#7472#7534
Half → 25K105112-7#7534#7541
25K → 30K108413-305#7541#7846
30K → 20M15124+127#7846#7719
20M → 21M11680+36#7719#7683
21M → 35K7633+43#7683#7640
35K → 23M12953+76#7640#7564
23M → 24M27227-200#7564#7764
24M → 40K10834+74#7764#7690
40K → 25.2M2549-24#7690#7714
25.2M → Finish7948+31#7714#7683
TOTALS13401713-373
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing