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BOSTON MARATHON 2025

Christina Norris

Bib: 28366•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:57
Rank: #8353
Start → 5K
21:57 | 7:04/mi
10K· 6.21 mi
42:36
Rank: #6807 (+1546)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:03:35
Rank: #6431 (+376)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:24:51
Rank: #6209 (+222)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:29:28
Rank: #6173 (+36)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:21
Rank: #6132 (+41)
Half → 25K
16:53 | 6:58/mi
30K· 18.64 mi
2:08:53
Rank: #6067 (+65)
25K → 30K
22:32 | 7:15/mi
20M
2:18:42
Rank: #5979 (+88)
30K → 20M
9:49 | 7:13/mi
21M
2:26:18
Rank: #5852 (+127)
20M → 21M
7:36 | 7:36/mi
35K· 21.75 mi
2:31:18
Rank: #5750 (+102)
21M → 35K
5:00 | 6:41/mi
23M
2:40:06
Rank: #5561 (+189)
35K → 23M
8:48 | 7:02/mi
24M
2:46:53
Rank: #5432 (+129)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:52:47
Rank: #5304 (+128)
24M → 40K
5:54 | 6:54/mi
25.2M
2:55:22
Rank: #5250 (+54)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:02:20
Rank: #5184 (+66)
25.2M → Finish
6:58 | 6:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:28
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:32:52
Pace7:05 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:3721:577:0421:57
7:04
-
10K
6.21 mi11:59:1642:366:5120:39
6:39
-0:25
15K
9.32 mi12:20:151:03:356:4920:59
6:45
+0:06
20K
12.43 mi12:41:311:24:516:5021:16
6:51
+0:06
Half
13.11 mi12:46:081:29:286:494:37
6:46
-0:05
25K
15.53 mi13:03:011:46:216:5116:53
6:58
+0:12
30K
18.64 mi13:25:332:08:536:5522:32
7:15
+0:17
20M
20.00 mi13:35:222:18:426:569:49
7:13
-0:02
21M
21.00 mi13:42:582:26:186:587:36
7:36
+0:23
35K
21.75 mi13:47:582:31:186:575:00
6:41
-0:55
23M
23.00 mi13:56:462:40:066:588:48
7:02
+0:21
24M
24.00 mi14:03:332:46:536:576:47
6:47
-0:15
40K
24.85 mi14:09:272:52:476:575:54
6:54
+0:07
25.2M
25.20 mi14:12:022:55:226:582:35
7:29
+0:35
Finish
26.22 mi14:19:003:02:206:586:58
6:50
-0:39

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

6:39 /mi

Average Pace

6:58 /mi

Slowest Pace

7:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:09

94% of race

Time at Steady Pace

10:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi11:38:3721:577:0421:57
7:04
#8353
10K
6.21 mi11:59:1642:366:5120:39
6:39
#6807
15K
9.32 mi12:20:151:03:356:4920:59
6:45
#6431
20K
12.43 mi12:41:311:24:516:5021:16
6:51
#6209
Half
13.11 mi12:46:081:29:286:494:37
6:46
#6173
25K
15.53 mi13:03:011:46:216:5116:53
6:58
#6132
30K
18.64 mi13:25:332:08:536:5522:32
7:15
#6067
20M
20.00 mi13:35:222:18:426:569:49
7:13
#5979
21M
21.00 mi13:42:582:26:186:587:36
7:36
#5852
35K
21.75 mi13:47:582:31:186:575:00
6:41
#5750
23M
23.00 mi13:56:462:40:066:588:48
7:02
#5561
24M
24.00 mi14:03:332:46:536:576:47
6:47
#5432
40K
24.85 mi14:09:272:52:476:575:54
6:54
#5304
25.2M
25.20 mi14:12:022:55:226:582:35
7:29
#5250
Finish
26.22 mi14:19:003:02:206:586:58
6:50
#5184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8353111011105653(Top 20%)475(Top 4%)475(Top 9%)
10K6.21 mi3.10 mi6807+1546648+462648+4624868(Top 17%)311(Top 3%)311(Top 6%)
15K9.32 mi3.11 mi6431+376573+75573+755653(Top 20%)475(Top 4%)475(Top 9%)
20K12.43 mi3.11 mi6209+222544+29544+295757(Top 20%)499(Top 4%)499(Top 9%)
Half13.11 mi0.68 mi6173+36541+3541+35927(Top 21%)525(Top 4%)525(Top 10%)
25K15.53 mi2.42 mi6132+41558-17558-176081(Top 21%)604(Top 5%)604(Top 11%)
30K18.64 mi3.11 mi6067+65570-12570-126190(Top 22%)720(Top 6%)720(Top 13%)
20M20.00 mi1.36 mi5979+88562+8562+85355(Top 19%)595(Top 5%)595(Top 11%)
21M21.00 mi1.00 mi5852+127544+18544+185147(Top 18%)647(Top 5%)647(Top 12%)
35K21.75 mi0.75 mi5750+102527+17527+173468(Top 12%)305(Top 2%)305(Top 6%)
23M23.00 mi1.25 mi5561+189504+23504+233961(Top 14%)411(Top 3%)411(Top 8%)
24M24.00 mi1.00 mi5432+129488+16488+163451(Top 12%)348(Top 3%)348(Top 6%)
40K24.85 mi0.85 mi5304+128475+13475+133389(Top 12%)357(Top 3%)357(Top 7%)
25.2M25.20 mi0.35 mi5250+54472+3472+33454(Top 12%)421(Top 3%)421(Top 8%)
Finish26.22 mi1.02 mi5184+66471+1471+14746(Top 17%)771(Top 6%)771(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5653

Females

475

F18-39

475

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4868

Females

311

F18-39

311

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5653

Females

475

F18-39

475

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5757

Females

499

F18-39

499

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5927

Females

525

F18-39

525

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

6081

Females

604

F18-39

604

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6190

Females

720

F18-39

720

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5355

Females

595

F18-39

595

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5147

Females

647

F18-39

647

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3468

Females

305

F18-39

305

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3961

Females

411

F18-39

411

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3451

Females

348

F18-39

348

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3389

Females

357

F18-39

357

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3454

Females

421

F18-39

421

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4746

Females

771

F18-39

771

Passing Analysis

Category:
Athletes Passed
3564
Passed By
395
Net Change
+3169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8353
5K → 10K15471+1546#8353#6807
10K → 15K40125+376#6807#6431
15K → 20K26038+222#6431#6209
20K → Half5014+36#6209#6173
Half → 25K13796+41#6173#6132
25K → 30K203138+65#6132#6067
30K → 20M11527+88#6067#5979
20M → 21M14518+127#5979#5852
21M → 35K1053+102#5852#5750
35K → 23M1967+189#5750#5561
23M → 24M1323+129#5561#5432
24M → 40K1335+128#5432#5304
40K → 25.2M540+54#5304#5250
25.2M → Finish8620+66#5250#5184
TOTALS3564395+3169
📊

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