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BOSTON MARATHON 2025

Chloee Sagmoe

Bib: 12108•F

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:16
Rank: #9219
Start → 5K
7:10/mi
22:16 split
10K· 6.21 mi
45:42
Rank: #10826 (-1607)
5K → 10K
7:33/mi
23:26 split
15K· 9.32 mi
1:10:07
Rank: #12192 (-1366)
10K → 15K
7:52/mi
24:25 split
20K· 12.43 mi
1:35:08
Rank: #12970 (-778)
15K → 20K
8:03/mi
25:01 split
Half· 13.11 mi
1:40:25
Rank: #13010 (-40)
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
2:00:21
Rank: #13411 (-401)
Half → 25K
8:13/mi
19:56 split
30K· 18.64 mi
2:26:31
Rank: #13573 (-162)
25K → 30K
8:25/mi
26:10 split
20M
2:37:39
Rank: #13393 (+180)
30K → 20M
8:12/mi
11:08 split
21M
2:47:09
Rank: #13548 (-155)
20M → 21M
9:30/mi
9:30 split
35K· 21.75 mi
2:53:10
Rank: #13497 (+51)
21M → 35K
8:03/mi
6:01 split
23M
3:03:57
Rank: #13494 (+3)
35K → 23M
8:37/mi
10:47 split
24M
3:11:52
Rank: #13358 (+136)
23M → 24M
7:55/mi
7:55 split
40K· 24.85 mi
3:18:36
Rank: #13198 (+160)
24M → 40K
7:53/mi
6:44 split
25.2M
3:21:39
Rank: #13159 (+39)
40K → 25.2M
8:51/mi
3:03 split
Finish· 26.22 mi
3:29:26
Rank: #13059 (+100)
25.2M → Finish
7:38/mi
7:47 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:25
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:49:01
Pace8:19 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2322:167:1022:16
7:10
-
10K
6.21 mi11:13:4945:427:2123:26
7:33
+0:23
15K
9.32 mi11:38:141:10:077:3124:25
7:52
+0:19
20K
12.43 mi12:03:151:35:087:3925:01
8:03
+0:11
Half
13.11 mi12:08:321:40:257:405:17
7:45
-0:18
25K
15.53 mi12:28:282:00:217:4519:56
8:13
+0:28
30K
18.64 mi12:54:382:26:317:5226:10
8:25
+0:12
20M
20.00 mi13:05:462:37:397:5311:08
8:12
-0:13
21M
21.00 mi13:15:162:47:097:589:30
9:30
+1:18
35K
21.75 mi13:21:172:53:107:586:01
8:03
-1:27
23M
23.00 mi13:32:043:03:578:0010:47
8:37
+0:34
24M
24.00 mi13:39:593:11:528:007:55
7:55
-0:42
40K
24.85 mi13:46:433:18:367:596:44
7:53
-0:02
25.2M
25.20 mi13:49:463:21:398:003:03
8:51
+0:58
Finish
26.22 mi13:57:333:29:268:007:47
7:38
-1:13

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

7:10 /mi

Average Pace

8:00 /mi

Slowest Pace

9:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:46

28% of race

Time at Steady Pace

1:41:10

48% of race

Time at Slower Pace

49:30

24% of race

Average Pace: 7:59 /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 mi10:50:2322:167:1022:16
7:10
#9219
10K
6.21 mi11:13:4945:427:2123:26
7:33
#10826
15K
9.32 mi11:38:141:10:077:3124:25
7:52
#12192
20K
12.43 mi12:03:151:35:087:3925:01
8:03
#12970
Half
13.11 mi12:08:321:40:257:405:17
7:45
#13010
25K
15.53 mi12:28:282:00:217:4519:56
8:13
#13411
30K
18.64 mi12:54:382:26:317:5226:10
8:25
#13573
20M
20.00 mi13:05:462:37:397:5311:08
8:12
#13393
21M
21.00 mi13:15:162:47:097:589:30
9:30
#13548
35K
21.75 mi13:21:172:53:107:586:01
8:03
#13497
23M
23.00 mi13:32:043:03:578:0010:47
8:37
#13494
24M
24.00 mi13:39:593:11:528:007:55
7:55
#13358
40K
24.85 mi13:46:433:18:367:596:44
7:53
#13198
25.2M
25.20 mi13:49:463:21:398:003:03
8:51
#13159
Finish
26.22 mi13:57:333:29:268:007:47
7:38
#13059
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi92191469146914896(Top 52%)4523(Top 37%)4523(Top 83%)
10K6.21 mi3.10 mi10826-16072222-7532222-75312509(Top 44%)3097(Top 25%)3097(Top 57%)
15K9.32 mi3.11 mi12192-13662943-7212943-72114896(Top 52%)4523(Top 37%)4523(Top 83%)
20K12.43 mi3.11 mi12970-7783428-4853428-48515295(Top 54%)4793(Top 39%)4793(Top 88%)
Half13.11 mi0.68 mi13010-403456-283456-2813827(Top 49%)3966(Top 32%)3966(Top 73%)
25K15.53 mi2.42 mi13411-4013720-2643720-26415442(Top 54%)4976(Top 41%)4976(Top 91%)
30K18.64 mi3.11 mi13573-1623863-1433863-14314275(Top 50%)4517(Top 37%)4517(Top 83%)
20M20.00 mi1.36 mi13393+1803801+623801+6211778(Top 41%)3344(Top 27%)3344(Top 61%)
21M21.00 mi1.00 mi13548-1553919-1183919-11816078(Top 57%)5737(Top 47%)5737(Top 105%)
35K21.75 mi0.75 mi13497+513912+73912+712570(Top 44%)3933(Top 32%)3933(Top 72%)
23M23.00 mi1.25 mi13494+33953-413953-4114020(Top 49%)4798(Top 39%)4798(Top 88%)
24M24.00 mi1.00 mi13358+1363896+573896+5710701(Top 38%)3142(Top 26%)3142(Top 57%)
40K24.85 mi0.85 mi13198+1603836+603836+609347(Top 33%)2621(Top 21%)2621(Top 48%)
25.2M25.20 mi0.35 mi13159+393829+73829+711004(Top 39%)3498(Top 29%)3498(Top 64%)
Finish26.22 mi1.02 mi13059+1003792+373792+3710260(Top 36%)3120(Top 26%)3120(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14896

Females

4523

F18-39

4523

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12509

Females

3097

F18-39

3097

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14896

Females

4523

F18-39

4523

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15295

Females

4793

F18-39

4793

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13827

Females

3966

F18-39

3966

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15442

Females

4976

F18-39

4976

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14275

Females

4517

F18-39

4517

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11778

Females

3344

F18-39

3344

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16078

Females

5737

F18-39

5737

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12570

Females

3933

F18-39

3933

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

14020

Females

4798

F18-39

4798

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10701

Females

3142

F18-39

3142

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9347

Females

2621

F18-39

2621

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11004

Females

3498

F18-39

3498

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10260

Females

3120

F18-39

3120

Passing Analysis

Category:
Athletes Passed
1357
Passed By
5195
Net Change
-3840
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9219
5K → 10K151620-1607#9219#10826
10K → 15K251391-1366#10826#12192
15K → 20K58836-778#12192#12970
20K → Half2161-40#12970#13010
Half → 25K77478-401#13010#13411
25K → 30K198360-162#13411#13573
30K → 20M21434+180#13573#13393
20M → 21M67222-155#13393#13548
21M → 35K7625+51#13548#13497
35K → 23M113110+3#13497#13494
23M → 24M15418+136#13494#13358
24M → 40K1688+160#13358#13198
40K → 25.2M5112+39#13198#13159
25.2M → Finish12020+100#13159#13059
TOTALS13575195-3840
📊

Passing Visuals

Category:
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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