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BOSTON MARATHON 2025

Christina Noordstar

Bib: 17771•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Masters (Masters Women)
#0 / 6759
Top 7%
Division (F45-49)
#0 / 1813
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:22/mi
22:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
45:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:08:38
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:31:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:36:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:19/mi
1:54:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:37/mi
2:17:47
↑ 181↓ 1480.2%
20M
7:59/mi
2:28:38
↑ 64↓ 500.2%
21M
8:46/mi
2:37:24
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:43:27
↑ 17↓ 861.7%
23M
7:59/mi
2:53:27
↑ 23↓ 630.6%
24M
7:49/mi
3:01:16
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:08:11
↓ 200.3%
25.2M
9:23/mi
3:11:25
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:19:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:23
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:43:10
Pace7:52 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5122:547:2222:54
7:22
-
10K
6.21 mi11:17:4445:477:2222:53
7:22
0:00
15K
9.32 mi11:40:351:08:387:2222:51
7:21
-0:01
20K
12.43 mi12:03:251:31:287:2222:50
7:21
0:00
Half
13.11 mi12:08:201:36:237:214:55
7:12
-0:09
25K
15.53 mi12:26:051:54:087:2117:45
7:19
+0:07
30K
18.64 mi12:49:442:17:477:2323:39
7:37
+0:18
20M
20.00 mi13:00:352:28:387:2610:51
7:59
+0:22
21M
21.00 mi13:09:212:37:247:308:46
8:46
+0:47
35K
21.75 mi13:15:242:43:277:316:03
8:05
-0:41
23M
23.00 mi13:25:242:53:277:3210:00
7:59
-0:06
24M
24.00 mi13:33:133:01:167:337:49
7:49
-0:10
40K
24.85 mi13:40:083:08:117:346:55
8:05
+0:16
25.2M
25.20 mi13:43:223:11:257:363:14
9:23
+1:18
Finish
26.22 mi13:51:303:19:337:378:08
7:59
-1:24

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

7:12 /mi

Average Pace

7:37 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:08

57% of race

Time at Steady Pace

1:13:25

37% of race

Time at Slower Pace

12:00

6% of race

Average Pace: 7:37 /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 mi10:54:5122:547:2222:54
7:22
#11066
10K
6.21 mi11:17:4445:477:2222:53
7:22
#10946
15K
9.32 mi11:40:351:08:387:2222:51
7:21
#10754
20K
12.43 mi12:03:251:31:287:2222:50
7:21
#10401
Half
13.11 mi12:08:201:36:237:214:55
7:12
#10322
25K
15.53 mi12:26:051:54:087:2117:45
7:19
#9976
30K
18.64 mi12:49:442:17:477:2323:39
7:37
#9631
20M
20.00 mi13:00:352:28:387:2610:51
7:59
#9653
21M
21.00 mi13:09:212:37:247:308:46
8:46
#9761
35K
21.75 mi13:15:242:43:277:316:03
8:05
#9882
23M
23.00 mi13:25:242:53:277:3210:00
7:59
#9868
24M
24.00 mi13:33:133:01:167:337:49
7:49
#9827
40K
24.85 mi13:40:083:08:117:346:55
8:05
#9840
25.2M
25.20 mi13:43:223:11:257:363:14
9:23
#9913
Finish
26.22 mi13:51:303:19:337:378:08
7:59
#10016
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi110662318231810468(Top 37%)2103(Top 17%)2103(Top 116%)
10K6.21 mi3.10 mi10946+1202282+362282+3610889(Top 38%)2249(Top 18%)2249(Top 124%)
15K9.32 mi3.11 mi10754+1922205+772205+7710468(Top 37%)2103(Top 17%)2103(Top 116%)
20K12.43 mi3.11 mi10401+3532056+1492056+1499472(Top 33%)1725(Top 14%)1725(Top 95%)
Half13.11 mi0.68 mi10322+792027+292027+299222(Top 32%)1607(Top 13%)1607(Top 89%)
25K15.53 mi2.42 mi9976+3461892+1351892+1358540(Top 30%)1450(Top 12%)1450(Top 80%)
30K18.64 mi3.11 mi9631+3451795+971795+978552(Top 30%)1625(Top 13%)1625(Top 90%)
20M20.00 mi1.36 mi9653-221837-421837-4210356(Top 36%)2607(Top 21%)2607(Top 144%)
21M21.00 mi1.00 mi9761-1081911-741911-7412097(Top 43%)3642(Top 30%)3642(Top 201%)
35K21.75 mi0.75 mi9882-1211999-881999-8812839(Top 45%)4058(Top 33%)4058(Top 224%)
23M23.00 mi1.25 mi9868+142046-472046-479939(Top 35%)2706(Top 22%)2706(Top 149%)
24M24.00 mi1.00 mi9827+412055-92055-99946(Top 35%)2776(Top 23%)2776(Top 153%)
40K24.85 mi0.85 mi9840-132104-492104-4910790(Top 38%)3299(Top 27%)3299(Top 182%)
25.2M25.20 mi0.35 mi9913-732150-462150-4613888(Top 49%)4931(Top 40%)4931(Top 272%)
Finish26.22 mi1.02 mi10016-1032228-782228-7812765(Top 45%)4308(Top 35%)4308(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10468

Females

2103

F45-49

2103

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10889

Females

2249

F45-49

2249

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10468

Females

2103

F45-49

2103

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9472

Females

1725

F45-49

1725

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

9222

Females

1607

F45-49

1607

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8540

Females

1450

F45-49

1450

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8552

Females

1625

F45-49

1625

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10356

Females

2607

F45-49

2607

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12097

Females

3642

F45-49

3642

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12839

Females

4058

F45-49

4058

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9939

Females

2706

F45-49

2706

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9946

Females

2776

F45-49

2776

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10790

Females

3299

F45-49

3299

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13888

Females

4931

F45-49

4931

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12765

Females

4308

F45-49

4308

Passing Analysis

Category:
Athletes Passed
2363*
Passed By
1309
Net Change
+1050
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11066
5K → 10K315195+120#11066#10946
10K → 15K26876+192#10946#10754
15K → 20K38835+353#10754#10401
20K → Half823+79#10401#10322
Half → 25K362*16+346#10322#9976
25K → 30K41469+345#9976#9631
30K → 20M92113-22#9631#9653
20M → 21M60168-108#9653#9761
21M → 35K40161-121#9761#9882
35K → 23M115100+14#9882#9868
23M → 24M9554+41#9868#9827
24M → 40K7183-13#9827#9840
40K → 25.2M1588-73#9840#9913
25.2M → Finish46148-103#9913#10016
TOTALS2363*1309+1050

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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